William Hugh Kellachan (Callaghan)

Name William Callaghan

Gender Male

Christening Date 24 Oct 1824

Christening Place DRUMACHOSE,LONDONDERRY,IRELAND

Father's Name Robert Callaghan

Mother's Name Jane

IRELAND BIRTHS AND BAPTISMS, 1620-1881

Indexing Project (Batch) Number C70021-1

System Origin Ireland-ODM

GS Film number 496750

OR

William Callaghan

Ireland Births and Baptisms

Name William Callaghan

Gender Male

Christening Date 26 Jan 1817

Christening Place CATHEDRAL ST MARY,LIMERICK,LIMERICK,IRELAND

Father's Name William Callaghan

Mother's Name Jane

IRELAND BIRTHS AND BAPTISMS, 1620-1881

Indexing Project (Batch) Number C70056-1

System Origin Ireland-ODM

GS Film number 0897365 IT 9

This William Callaghan and Jane had the following children; Samuel 1815 Limerick, William 1817 Limerick, Jane 1819 Limerick, Anne 1822 Limerick, Jane 1826 Limerick

Or- William Kellachan may be the William Callaghan that was born in October 1824 in Drumachose, Londonderry, Northern Ireland. Married to a Catherine Lemon/Lennon — married on January 4, 1849 in Ireland.

Alternatively, this may be the William Callaghan born in 1820, who married Catherine Lynch. Its stated that this William was the son of a William and that Catherine was daughter of an Edmond Lynch.

The Kellachans descend from Cellachán mac Buadacháin, otherwise known as Cellachán Caisil the King of Munster or Cellachan of Cashel. Another spelling variation for Kellachan would be O'Callaghan.

Ceallachan (Callahan, Callaghan, Cellachan, Ceallaghan, Cellachain,Ceallachain) of Cashel (Caisal, Caisil), was the 10th century King of the Irish province of Munster (i.e. the southwestern quarter of Ireland) from whom the family names of Callahan and MacCarthy and their variations (e.g. Callaghan, O'Callahan, O'Callaghan, MacCarthaig, etc.) were derived.

Interestingly, there also was a later Saint Callaghan who was a monk at Clontibret (Coghlan et al., The Book of Irish Names, 1989:14) and a Callahan castle at Clonmeen that was destroyed by William of Orange. At one point in later history the Callahans "settled on the banks of the Blackwater, west of Mallow, where they became the chiefs of a territory called after them 'Pobul Ui Cheallachain' " (C. Thomas Cairney, 1989, Clans and Families of Ireland and Scotland, An Ethnography of the Gael, A.D. 500-1750; McFarland & Co. Jefferson NC; p.123). The Poems of Egan O'Rahilly (1911) have two poems written in the early 1700's about the death of Domhnall O'Callaghan in 1724 and describe his genealogy, life at Clonmeen Castle, and the Callahan coat of arms. The Callahan crest is based upon the image of a wolf emerging from an oak grove, i.e. "Ar. in base a mount vert on the dexter side a hurst of oak trees issuant therefrom a wolf passant towards the sinister all proper." (Cairney 1989:164). There are also extensive records in continental archives of Spanish Knights of Irish Origin including Matheo O Calaghan (1722), Knight of Santiago (M. Walsh 1960).

The Inauguration of Ceallachan of Cashel as the King of Munster c. 940/44 A.D.

"Each put his hands between those of the prince, the royal diadem was placed on his head; it was announced to the people that Ceallachan, the son of Buadhachan, the son of Lachtna, the son of Ardghal, the son of Sneadhghus, the son of Faolghus, the son of Natfraoich, the son of Colga, the son of Failbhe Flan, the son of Aodh Dubh, the son of Criomhthann, the son of Feidhlimidh, the son of Aonghus, the son of Conall Corc, the son of Lughaidh, the son of Oilill Flannbeg, the son of Fiacha Muilleathan, the son of Eoghan Mor, the son of Oilill Olum, was sovereign prince and ruler of Leath Mogha, and the royal shout proclaimed the public approbation" (Gleeson, Cashel of the Kings; cited in Roger Chatterton Newman's Brian Boru, King of Ireland, 1983 p.54).

[The names described above correlate fairly well with the geneaological table of the Kings of Munster found in Moody et al. (1984:136). According to Moody et al., the Aonghus referred to in the geneaology described above died c. 490/92 A.D., suggesting that this geneaology extended well back in time. Moody et al. would appear to contradict the unsupported statement of Newman that, "The quotation, given by Gleeson in Cashel of the Kings, is an interesting, if genealogically dubious, insight into the coronation of an Irish king"(1983:194)]. Newman's statement of skepticism about Ceallachan's ancestry is based on his view that historians should not necessarily take such things at face value and on an assumption that it would have been politically advantageous to have a lengthy pedigree going back to the beginnings of the Eoghanacta in the second century with Eoghan Mor and Cormac Cas, which it certainly would have been, but that does not mean it was not also true. Newman is the biographer of Brian Boru whose Dalcassian father, Cinneide (Kennedy), was Ceallachan's rival and under their system of tanistry, Ceallachan's successor for the Kingship of Munster. Cinneide was later killed during a battle between the Dalcassian's and Ceallachan's Eoghanacht. The Dal Cas (Dalcassians) were the traditional kings of Thomond in north Munster, and the Eoghanact were traditional kings in south Munster. The kingship of Munster was determined by an election and perhaps tanistry. In theory it may have alternated between two groups, but this has been questioned by some historians.

More genealogical information:

Callahan and MacCarthy Genealogy chart, 954 A.D.-1773 A.D. (O' Donovan 1841:64).

Detailed genealogical tables of the Kings of Munster (Eoganacht) to 1024, the succession list of the Kings of Munster to 1119, and the early MacCarthys of Desmond beginning with Carthach, King of Eoganacht Caisil (d. 1045), can found in A New History of Ireland Vol. IX Maps, genealogies, lists edited by T.W. Moody, F.X. Martin, and F.J. Byrne, 1984, Clarendon Press: Oxford pp.136,154-157, 203-206.

According to O'Donovan (1848:12) Callaghan of Cashel is also mentioned in a poem on the Triumphs of the Kinel-Owen composed by Flann of the Monastery, preserved in the Book of Glendalough (fol.147, b.a.) a MS. of the twelfth century in the Manuscript Library of Trinity College, Dublin.

Earlier Callahan ancestry is further referenced on the Callahan WWW Home Page (see the Links page). For example: "The year 489 is notable for the death of Aenghus, son of Nadfreach, King of Munster, the common ancestor of the MacCarthy's, O'Keefe's, O'Callaghan's and O'Sullivan's...."

For genealogical pedigrees before and after Ceallachan of Cashel check The Book of Munster at http://www2.smumn.edu/uasal/eoghan.html. The website indicates that The Book of Munster was "Written in 1703, [by] Rev. Eugene O'Keeffe, Parish priest and Poet of Doneraile, North Cork." As an example of what is at the website, here is part of the line including, but mostly BEFORE, Ceallachan. The Book of Munster starts earlier with Oilill Olum and the beginning of the Eoghanacht genealogy.

"(This is the stem of the MacCarthy and O'Callaghan Pedigree)

The Race of Failbhe Flann here:-

Failbhe Flann, died 637, son of Aodh Dubh son of Criom Thainn

had one son, i.e., Colga.

Colga's son - Nad Fraoich

Nad Fraoich's son - Daolghus

Daolghus's son - O Donnghail

Donnghail's son - Sneadghue

Sneadghue's son - Artghail

Artghail's son - Lachtna

Lachtna's son - Buadhchain

Buadhchain's son - Ceallachan (died 954)

Son of Ceallachan Caisil was Donnchadh

Donnchadh had two sons: Saoirlmeathach (from whom the MacCarthy's) and

Murchad from whom are the O'Callaghans." (source: The Book of Munster).

Here is another line including, AFTER, Ceallachan of Cashel:

"XXIII.

The O'Callaghans

Murchadh son of Donnchadh son of Ceallachan Caiseil had one son

Domhnall.

Domhnall's son - Ceallachan.

Ceallachan's son - Cinneidigh.

Cinneidigh's son - Aodh.

Aodh's son - Murchadh.

Murchad's son - Mathghamain (Mahon)

Mathghamain's son - Macraith

Macraith's son - Lochlainn

Lochlainn's son - Maol Sheachlainn (Malachy)

Maolseachlainn's son - Macraith

Macraith's son - Cinneidhigh

Cinneidhigh's son - Donnchadh

Donnchadh's son - Conchubhar Lynagh

Conchubar's son - Tadhg Ruadh (died 1532)

Tadhg Ruadh's four sons - Donnchadh (died 1577), Cathaoir, Diarmuid and

Eoghan

Donnchadh's son - Conchubhar

Conchbhar's son - Ceallachan (died 1578)

Ceallachan's son - Cathaoir Modartha

Cathaoir Modartha's family: Donnchadh, Tadhg, Ceallachan, and Conchubhar.

Donnchadh had five sons: Tadhg, Donnchadh Og, Cathaoir, Ceallachan and

Murchadh.

Tadhg had three sons: Conchubhar, Donnchadh and Cathaoir. 

Ceallachan, son of Cathaoior Modartha, had two sons: Ceallachan and

Cinneidigh.

Conchubhar, son of Cahaoir Modartha, had two sons: Cathaoir, slain in 

Ulster and Tadhg, now (1703) married to Mary daughter of Cormac Spainneach

McCarthy (Carrignavar) and she previously was wife to Donnchadh Og son

of Donnchadh son of Cathaoir Modartha.

(There are some genealogies of minor branches of O'Callaghan)"

[source: The Book of Munster].

Ceallachan's pedigree is also given in Geoffrey Keating's History of Ireland as follows:

"105 Donnchadh, son of

104 Ceallachan of Caiseal, son of 

103 Buadhachan, son of 

102 Lachtna, son of 

101 Artghal, son of 

100 Sneadhghus. Brother to this Sneadhghus was Foghartach and son to Foghartach was Fionghuine from whom Muinntear Fhionghuine are called, son of 

99 Donnghal, son of 

98 Faolghus, son of 

97 Natfraoich, son of 

96 Colga, son of 

95 Failbhe Flann. Brother to this Failbhe Flann was Finguin son of Aodh Dubh from whom are sprung O Suilleabhain Mor and O Suilleabhain of Bearra. The 

Book of Munster says that Finghin was senior to Failbhe and that for that reason the seancha composed the following stanza on Finghin's being in the sovereignty of Munster before Failbhe, on account of his seniority to 

him -

To be without Finghin, to be without Mor

to Caiseal is a cause of grief; 

It is as if there were no king 

If Failbhe Flann is to be king. 

Left: "Cashel of the Kings" on the Rock of Cashel, in Co. Tipperary is atop a limestone rock that rises 200 feet above the surrounding plain..

However, since the descendants of Failbhe excelled those of Fingin in prowess and noblity of deeds they are made founders in the genealogy here, son of

94 Aodh Dubh, son of 

93 Criomhthann, son of 

92 Feidhlimidh. Brother to this Feidhlimidh was Eochaidh Fionn from whom sprung O Caoimh, and another brother to him was Eanna whence spring Muinntear Dhalaigh of Munster, son of 

91 Aonghus, son of 

90 Natfraoich. Brother to this Natfraoich was Cas son of Corc whence sprang O Dannchadha Mor, and from him sprang O Dannchadha of the Gleann, O Mathghamhna Fionn, O Mathghamhna Ruadh, and O Mathghamhna of Ui 

Floinn Lua, and O Mathghamhna of cairbre, and from another brother of this Natfraoich namely Cairbre Luchra son of Corc are sprung Ui Muircheartaigh, son of 

89 Corc, son of 

88 Lughaidh. Brother of this Lughaidh was Daire Cearb from whom are sprung O Donnabhain and O Cuilein of Cairbre, son of 

87 Oilill Flann Beag. From the progeny of Fiachaidh Fighinnte son of Caire Cearb son of Oilill Flann Beag are sprung Muinntear Aicheir, Muinntear Mhiadhachain and Clann Mhic Dabhith in Thomond, son of 

86 Fiachaidh Muilleathan, son of 

85 Eoghan Mor, son of 

84 Oilill Olum, son of 

83 Mugh Nuadhat " (source: The Keating Genealogies).

There is some additional post Ceallachan genealogy at http://www2.smumn.edu/munster/ocallaghan.html

Lismore Castle, (after a photo by Desmond Guinness and William Ryan, 1971 Irish houses and castles, Thames & Hudson; London, p. 281). In 1814, during repairs to the castle, workmen found a wooden box inside a walled up passage. Inside the wooden box was a crosier, now in the National Museum, Dublin, inscribed with the information that the crosier was made for the bishop of Lismore who died in 1113 and the Book of McCarthy Reagh, popularly known as the Book of Lismore. One of the sections of the book was the saga of Ceallachan, now known as Caithreim Ceallachan Caisil. Other parts of the book included stories about the Lives of Saints, the reign of Charlemagne, and the travels of Marco Polo. Other copies of the saga's prose and poems survived independently. On June 20, 1629 the Book of Lismore was in Timoleague Abbey in the possession of Michael Clery, one of the authors of the Annals of the Four Masters. According to Whitley Stokes (1890), "The Book of Lismore was compiled from the lost Book of Monasterboice and other manuscripts in the latter half of the fifteenth century, for Finghin mac Carthaigh Riabhach and his wife Catherine, daughter of Thomas, eighth earl of Desmond" (Stokes 1890:v).

also see; http://www.libraryireland.com/Pedigrees1/OCallaghanHeber.php

http://www.clanmaclochlainn.com/munster.htm

У этого Уильяма Каллагана и Джейн были следующие дети; Самуэль 1815 Лимерик, Уильям 1817 Лимерик, Джейн 1819 Лимерик, Энн 1822 Лимерик, Джейн 1826 Лимерик

Или - Уильям Келлахан может быть Уильямом Каллаганом, который родился в октябре 1824 года в Драмачозе, Лондондерри, Северная Ирландия. Женат на Кэтрин Лемон / Леннон - женился 4 января 1849 года в Ирландии.

Name William Callaghan

Gender Male

Christening Date 24 Oct 1824

Christening Place DRUMACHOSE,LONDONDERRY,IRELAND

Father's Name Robert Callaghan

Mother's Name Jane

IRELAND BIRTHS AND BAPTISMS, 1620-1881

Indexing Project (Batch) Number C70021-1

System Origin Ireland-ODM

GS Film number 496750

OR

William Callaghan

Ireland Births and Baptisms

Name William Callaghan

Gender Male

Christening Date 26 Jan 1817

Christening Place CATHEDRAL ST MARY,LIMERICK,LIMERICK,IRELAND

Father's Name William Callaghan

Mother's Name Jane

IRELAND BIRTHS AND BAPTISMS, 1620-1881

Indexing Project (Batch) Number C70056-1

System Origin Ireland-ODM

GS Film number 0897365 IT 9

This William Callaghan and Jane had the following children; Samuel 1815 Limerick, William 1817 Limerick, Jane 1819 Limerick, Anne 1822 Limerick, Jane 1826 Limerick

Or- William Kellachan may be the William Callaghan that was born in October 1824 in Drumachose, Londonderry, Northern Ireland. Married to a Catherine Lemon/Lennon — married on January 4, 1849 in Ireland.

Alternatively, this may be the William Callaghan born in 1820, who married Catherine Lynch. Its stated that this William was the son of a William and that Catherine was daughter of an Edmond Lynch.

The Kellachans descend from Cellachán mac Buadacháin, otherwise known as Cellachán Caisil the King of Munster or Cellachan of Cashel. Another spelling variation for Kellachan would be O'Callaghan.

Ceallachan (Callahan, Callaghan, Cellachan, Ceallaghan, Cellachain,Ceallachain) of Cashel (Caisal, Caisil), was the 10th century King of the Irish province of Munster (i.e. the southwestern quarter of Ireland) from whom the family names of Callahan and MacCarthy and their variations (e.g. Callaghan, O'Callahan, O'Callaghan, MacCarthaig, etc.) were derived.

Interestingly, there also was a later Saint Callaghan who was a monk at Clontibret (Coghlan et al., The Book of Irish Names, 1989:14) and a Callahan castle at Clonmeen that was destroyed by William of Orange. At one point in later history the Callahans "settled on the banks of the Blackwater, west of Mallow, where they became the chiefs of a territory called after them 'Pobul Ui Cheallachain' " (C. Thomas Cairney, 1989, Clans and Families of Ireland and Scotland, An Ethnography of the Gael, A.D. 500-1750; McFarland & Co. Jefferson NC; p.123). The Poems of Egan O'Rahilly (1911) have two poems written in the early 1700's about the death of Domhnall O'Callaghan in 1724 and describe his genealogy, life at Clonmeen Castle, and the Callahan coat of arms. The Callahan crest is based upon the image of a wolf emerging from an oak grove, i.e. "Ar. in base a mount vert on the dexter side a hurst of oak trees issuant therefrom a wolf passant towards the sinister all proper." (Cairney 1989:164). There are also extensive records in continental archives of Spanish Knights of Irish Origin including Matheo O Calaghan (1722), Knight of Santiago (M. Walsh 1960).

The Inauguration of Ceallachan of Cashel as the King of Munster c. 940/44 A.D.

"Each put his hands between those of the prince, the royal diadem was placed on his head; it was announced to the people that Ceallachan, the son of Buadhachan, the son of Lachtna, the son of Ardghal, the son of Sneadhghus, the son of Faolghus, the son of Natfraoich, the son of Colga, the son of Failbhe Flan, the son of Aodh Dubh, the son of Criomhthann, the son of Feidhlimidh, the son of Aonghus, the son of Conall Corc, the son of Lughaidh, the son of Oilill Flannbeg, the son of Fiacha Muilleathan, the son of Eoghan Mor, the son of Oilill Olum, was sovereign prince and ruler of Leath Mogha, and the royal shout proclaimed the public approbation" (Gleeson, Cashel of the Kings; cited in Roger Chatterton Newman's Brian Boru, King of Ireland, 1983 p.54).

[The names described above correlate fairly well with the geneaological table of the Kings of Munster found in Moody et al. (1984:136). According to Moody et al., the Aonghus referred to in the geneaology described above died c. 490/92 A.D., suggesting that this geneaology extended well back in time. Moody et al. would appear to contradict the unsupported statement of Newman that, "The quotation, given by Gleeson in Cashel of the Kings, is an interesting, if genealogically dubious, insight into the coronation of an Irish king"(1983:194)]. Newman's statement of skepticism about Ceallachan's ancestry is based on his view that historians should not necessarily take such things at face value and on an assumption that it would have been politically advantageous to have a lengthy pedigree going back to the beginnings of the Eoghanacta in the second century with Eoghan Mor and Cormac Cas, which it certainly would have been, but that does not mean it was not also true. Newman is the biographer of Brian Boru whose Dalcassian father, Cinneide (Kennedy), was Ceallachan's rival and under their system of tanistry, Ceallachan's successor for the Kingship of Munster. Cinneide was later killed during a battle between the Dalcassian's and Ceallachan's Eoghanacht. The Dal Cas (Dalcassians) were the traditional kings of Thomond in north Munster, and the Eoghanact were traditional kings in south Munster. The kingship of Munster was determined by an election and perhaps tanistry. In theory it may have alternated between two groups, but this has been questioned by some historians.

More genealogical information:

Callahan and MacCarthy Genealogy chart, 954 A.D.-1773 A.D. (O' Donovan 1841:64).

Detailed genealogical tables of the Kings of Munster (Eoganacht) to 1024, the succession list of the Kings of Munster to 1119, and the early MacCarthys of Desmond beginning with Carthach, King of Eoganacht Caisil (d. 1045), can found in A New History of Ireland Vol. IX Maps, genealogies, lists edited by T.W. Moody, F.X. Martin, and F.J. Byrne, 1984, Clarendon Press: Oxford pp.136,154-157, 203-206.

According to O'Donovan (1848:12) Callaghan of Cashel is also mentioned in a poem on the Triumphs of the Kinel-Owen composed by Flann of the Monastery, preserved in the Book of Glendalough (fol.147, b.a.) a MS. of the twelfth century in the Manuscript Library of Trinity College, Dublin.

Earlier Callahan ancestry is further referenced on the Callahan WWW Home Page (see the Links page). For example: "The year 489 is notable for the death of Aenghus, son of Nadfreach, King of Munster, the common ancestor of the MacCarthy's, O'Keefe's, O'Callaghan's and O'Sullivan's...."

For genealogical pedigrees before and after Ceallachan of Cashel check The Book of Munster at http://www2.smumn.edu/uasal/eoghan.html. The website indicates that The Book of Munster was "Written in 1703, [by] Rev. Eugene O'Keeffe, Parish priest and Poet of Doneraile, North Cork." As an example of what is at the website, here is part of the line including, but mostly BEFORE, Ceallachan. The Book of Munster starts earlier with Oilill Olum and the beginning of the Eoghanacht genealogy.

"(This is the stem of the MacCarthy and O'Callaghan Pedigree)

The Race of Failbhe Flann here:-

Failbhe Flann, died 637, son of Aodh Dubh son of Criom Thainn

had one son, i.e., Colga.

Colga's son - Nad Fraoich

Nad Fraoich's son - Daolghus

Daolghus's son - O Donnghail

Donnghail's son - Sneadghue

Sneadghue's son - Artghail

Artghail's son - Lachtna

Lachtna's son - Buadhchain

Buadhchain's son - Ceallachan (died 954)

Son of Ceallachan Caisil was Donnchadh

Donnchadh had two sons: Saoirlmeathach (from whom the MacCarthy's) and

Murchad from whom are the O'Callaghans." (source: The Book of Munster).

Here is another line including, AFTER, Ceallachan of Cashel:

"XXIII.

The O'Callaghans

Murchadh son of Donnchadh son of Ceallachan Caiseil had one son

Domhnall.

Domhnall's son - Ceallachan.

Ceallachan's son - Cinneidigh.

Cinneidigh's son - Aodh.

Aodh's son - Murchadh.

Murchad's son - Mathghamain (Mahon)

Mathghamain's son - Macraith

Macraith's son - Lochlainn

Lochlainn's son - Maol Sheachlainn (Malachy)

Maolseachlainn's son - Macraith

Macraith's son - Cinneidhigh

Cinneidhigh's son - Donnchadh

Donnchadh's son - Conchubhar Lynagh

Conchubar's son - Tadhg Ruadh (died 1532)

Tadhg Ruadh's four sons - Donnchadh (died 1577), Cathaoir, Diarmuid and

Eoghan

Donnchadh's son - Conchubhar

Conchbhar's son - Ceallachan (died 1578)

Ceallachan's son - Cathaoir Modartha

Cathaoir Modartha's family: Donnchadh, Tadhg, Ceallachan, and Conchubhar.

Donnchadh had five sons: Tadhg, Donnchadh Og, Cathaoir, Ceallachan and

Murchadh.

Tadhg had three sons: Conchubhar, Donnchadh and Cathaoir. 

Ceallachan, son of Cathaoior Modartha, had two sons: Ceallachan and

Cinneidigh.

Conchubhar, son of Cahaoir Modartha, had two sons: Cathaoir, slain in 

Ulster and Tadhg, now (1703) married to Mary daughter of Cormac Spainneach

McCarthy (Carrignavar) and she previously was wife to Donnchadh Og son

of Donnchadh son of Cathaoir Modartha.

(There are some genealogies of minor branches of O'Callaghan)"

[source: The Book of Munster].

Ceallachan's pedigree is also given in Geoffrey Keating's History of Ireland as follows:

"105 Donnchadh, son of

104 Ceallachan of Caiseal, son of 

103 Buadhachan, son of 

102 Lachtna, son of 

101 Artghal, son of 

100 Sneadhghus. Brother to this Sneadhghus was Foghartach and son to Foghartach was Fionghuine from whom Muinntear Fhionghuine are called, son of 

99 Donnghal, son of 

98 Faolghus, son of 

97 Natfraoich, son of 

96 Colga, son of 

95 Failbhe Flann. Brother to this Failbhe Flann was Finguin son of Aodh Dubh from whom are sprung O Suilleabhain Mor and O Suilleabhain of Bearra. The 

Book of Munster says that Finghin was senior to Failbhe and that for that reason the seancha composed the following stanza on Finghin's being in the sovereignty of Munster before Failbhe, on account of his seniority to 

him -

To be without Finghin, to be without Mor

to Caiseal is a cause of grief; 

It is as if there were no king 

If Failbhe Flann is to be king. 

Left: "Cashel of the Kings" on the Rock of Cashel, in Co. Tipperary is atop a limestone rock that rises 200 feet above the surrounding plain..

However, since the descendants of Failbhe excelled those of Fingin in prowess and noblity of deeds they are made founders in the genealogy here, son of

94 Aodh Dubh, son of 

93 Criomhthann, son of 

92 Feidhlimidh. Brother to this Feidhlimidh was Eochaidh Fionn from whom sprung O Caoimh, and another brother to him was Eanna whence spring Muinntear Dhalaigh of Munster, son of 

91 Aonghus, son of 

90 Natfraoich. Brother to this Natfraoich was Cas son of Corc whence sprang O Dannchadha Mor, and from him sprang O Dannchadha of the Gleann, O Mathghamhna Fionn, O Mathghamhna Ruadh, and O Mathghamhna of Ui 

Floinn Lua, and O Mathghamhna of cairbre, and from another brother of this Natfraoich namely Cairbre Luchra son of Corc are sprung Ui Muircheartaigh, son of 

89 Corc, son of 

88 Lughaidh. Brother of this Lughaidh was Daire Cearb from whom are sprung O Donnabhain and O Cuilein of Cairbre, son of 

87 Oilill Flann Beag. From the progeny of Fiachaidh Fighinnte son of Caire Cearb son of Oilill Flann Beag are sprung Muinntear Aicheir, Muinntear Mhiadhachain and Clann Mhic Dabhith in Thomond, son of 

86 Fiachaidh Muilleathan, son of 

85 Eoghan Mor, son of 

84 Oilill Olum, son of 

83 Mugh Nuadhat " (source: The Keating Genealogies).

There is some additional post Ceallachan genealogy at http://www2.smumn.edu/munster/ocallaghan.html

Lismore Castle, (after a photo by Desmond Guinness and William Ryan, 1971 Irish houses and castles, Thames & Hudson; London, p. 281). In 1814, during repairs to the castle, workmen found a wooden box inside a walled up passage. Inside the wooden box was a crosier, now in the National Museum, Dublin, inscribed with the information that the crosier was made for the bishop of Lismore who died in 1113 and the Book of McCarthy Reagh, popularly known as the Book of Lismore. One of the sections of the book was the saga of Ceallachan, now known as Caithreim Ceallachan Caisil. Other parts of the book included stories about the Lives of Saints, the reign of Charlemagne, and the travels of Marco Polo. Other copies of the saga's prose and poems survived independently. On June 20, 1629 the Book of Lismore was in Timoleague Abbey in the possession of Michael Clery, one of the authors of the Annals of the Four Masters. According to Whitley Stokes (1890), "The Book of Lismore was compiled from the lost Book of Monasterboice and other manuscripts in the latter half of the fifteenth century, for Finghin mac Carthaigh Riabhach and his wife Catherine, daughter of Thomas, eighth earl of Desmond" (Stokes 1890:v).

also see; http://www.libraryireland.com/Pedigrees1/OCallaghanHeber.php

http://www.clanmaclochlainn.com/munster.htm