According to Wikipedia his mother was Juliana de Grenville

https://en.wikipedia.org/wiki/Maurice_FitzGerald,_3rd_Lord_of_Offaly

Maurice FitzMaurice FitzGerald, 3rd Baron of Offaly was the son of Maurice FitzGerald, 2nd Lord Offaly, and his wife (believed to have been Juliana or Johanna de Geneville and not de Cogan, as once believed).

He was married to Maud de Prendergast, by whom he had two daughters, Amabel and Juliana (often ascribed as the daughter of his second wife, but Douglas Richarson argues against that theory; see below). His second wife was Emmeline de Longespee..

Douglas Richardson makes a well-backed claim that his daughter Juliana could not have been the daughter of Emmeline de Longespee but was instead the daughter of Maud Prendergast (see http://tinyurl.com/h32qw for more details):

"Juliana's mother was NOT Emmeline Longespee as claimed everywhere in print. A careful examination of Emmeline Longespee's records shows that at her death, Emmeline's IPM did NOT list Juliana as her daughter and heiress. Rather, Emmeline's heir was her grand niece, Maud la Zouche, wife of Robert, lst Lord Holand. In fact, all of Emmeline's property appears to have gone to Maud la Zouche and possibly to Maud's sister, Ellen."

Note from curator Pam Wilson: After extensive research and study of this problem, I am going to set the family tree on Geni.com for Juliana following FMG/MedLands with the exception of her mother, who I will set as Maud de Prendergast because of the lack of any counterevidence by FMG.

Note from Curator Pam Wilson from the profile of daughter Juliana:

Juliana FitzMaurice was the daughter of Maurice FitzMaurice and Maud de Prendergast (not Emmeline de Longespee).

She married 3 times:

Thomas de Clare Nicholas Avenel Adam de Cretinges

She is NOT the Juliana who married John (de) Cogan (that is her cousin, Juliana FitzGerald--see below).

Note from Curator Pam Wilson (24 September 2010): There is a problem with conflicting sources. FMG MedLands shows that there were *two* Julianas who were first cousins: one (A) the daughter of Gerald (II) FitzMaurice and the other (B) the daughter of his brother Maurice FitzMaurice (m. Maud de Prendergast and Emmeline de Longespee), both of whom were sons of Maurice FitzGerald, Baron Offaly, and his wife Juliana. So both would have been named after their paternal grandmother.

According to MedLands, Juliana (A) married John de Cogan, while Juliana (B) married both Thomas de Clare of Thomond and Nicholas Avenel.

ThePeerage.com is closely in agreement with FMG/MedLands and positions the Juliana (B) who married Thomas de Clare and Nicholas Avenel as the daughter of Maurice FitzMaurice and Emmeline de Longespee.

The references from the LDS Family Search as well as one from Rootsweb's WorldConnect collapse the identities of the two Julianas (A) and (B), while another reference has her married to Gilbert "The-Red-Earl" De Clare as well as Thomas de Clare.

A well-researched genealogy by John Blythe Dobson at http://library.uwinnipeg.ca/people/dobson/genealogy/ff/FitzAlan/Fit... says of her:

<<Julian FitzMaurice, d. 1300, her father’s coheiress.[40] She is called in an inquisition “Juliana quæ fuit uxor Thomæ de Clare defuncti, filia et altera hæres … Mauritii filii Mauritii,” while another taken a little later shows that she had remarried to Adam de Cretinge, referring to “Adam de Cretinge et Juliana uxor ejus (filia Mauritii filii Mauritii defuncti) quondam uxor Thomæ de Clare defuncti.”[41]>>

This would seem to support the addition of a third husband, Adam de Cretinge, based on referencing (#40) Magna Charta Sureties, 5th ed., line 144; Paget, 1:14; AR8, line 178. and (#41) Calendarium Genealogicum Henry III and Edward I, ed. Charles Roberts, 1:431, 448.

-----------------------

http://fmg.ac/Projects/MedLands/IRELAND.htm on this family:

GERALD FitzMaurice, son of MAURICE FitzGerald & his [first/second] wife --- ([1150]-1203). The Expugnatio Hibernica names "duo Mauricii filii, Giraldus et Alexander"[537]. Baron of Offaly. The Annales Cambriæ record the death in 1200 of "Geraldus filius Mauricii" in Ireland[538].

m ([1193]%29 as her first husband, EVE, daughter of [ROBERT de Bermingham & his wife ---] (-[1226]). She married secondly Geoffrey FitzRobert, and thirdly Geoffrey de Marsh.

Gerald & his wife had one child:

1. MAURICE FitzGerald (-1257). Baron of Offaly. m JULIANA, daughter of ---. Maurice & his wife had four children:

a) GERALD FitzMaurice ([1220]-1243). m ---. The name of Gerald´s wife is not known. Gerald & his wife had two children:

i) MAURICE FitzGerald (-1268). Baron of Offaly. m firstly ---. m secondly as her first husband, AGNES de Valence Dame de Danfalize, daughter of WILLIAM de Lusignan "de Valence" Seigneur de Valence Lord of Pembroke & his wife Joan Munchensy. She married secondly Hugh Balliol Baron of Bywell, and thirdly Jean d'Avesnes Seigneur de Beaumont. Maurice & his [first/second] wife had one child:

(a) GERALD FitzMaurice (-1287). Baron of Offaly. m JOAN de Joinville, daughter of GEOFFREY de Joinville (Geneville], Justiciar of Ireland & his wife Matilda de Lacy.

ii) JULIANA (-after 1309). m JOHN de Cogan (1243-1275).

b) MAURICE FitzMaurice (-1286). m firstly as her second husband, MATILDA, widow of MAURICE de Rocheford, daughter of GERALD de Prendergast & his wife ---. m secondly EMMELINE de Longespee, daughter of STEPHEN Longuespee [Seneschal of Gascony, Justiciar of Ireland] & his wife Emmeline de Rydeleford. The Book of Lacock names “Elam de la Souch…Emelinam” as the children of “Stephanus Lungespee” and his wife “Emelinam comitissam de Ulton”, adding that Emeline married “Mauritio filio Mauritii”[539]. Maurice & his first wife had one child:

i) AMABEL . m ANDREW Avenel .

Maurice & his second wife had one child:

ii) JULIANA . m firstly THOMAS de Clare Lord of Thomond, son of RICHARD de Clare Earl of Gloucester and Hertford & his wife Matilda de Lacy (-1287). m secondly NICHOLAS Avenel .

c) DAVID FitzMaurice .

d) THOMAS FitzMaurice (-Ballyloughmask, co. Mayo 1271). m ---. The name of Thomas´s wife is not known. Thomas & his wife had one child:

i) JOHN FitzThomas (-Laraghbryan, near Maynooth 12 Sep 1316, bur Kildare, Church of the Friars Minor). Baron of Offaly. He was created Earl of Kildare in 1316.

-------------

Sir Maurice fitz Maurice1

M, #3573, d. before 10 November 1286

Last Edited=16 Aug 2009

    Sir Maurice fitz Maurice was the son of Maurice fitz Gerald, 2nd Baron of Offaly and Juliane (?).  He married, firstly, Matilda de Prendergast, daughter of Gerald de Prendergast and Matilda de Burgh. He married, secondly, Emeline de Longespée, daughter of Stephen Longespée and Emeline de Ridelsford. He died before 10 November 1286 at Ross, County Wexford, Ireland. Sir Maurice fitz Maurice held the office of Lord Justice [Ireland].

1 Sir Maurice fitz Maurice also went by the nick-name of Maurice 'Mael' (or in English, 'the Bald').

Child of Sir Maurice fitz Maurice

1.Olivia FitzGerald

Child of Sir Maurice fitz Maurice and Matilda de Prendergast

1.Annabel FitzMaurice

Child of Sir Maurice fitz Maurice and Emeline de Longespée

1.Juliana FitzMaurice+1 b. c 1249, d. c 1300

http://thepeerage.com/p358.htm#i3573

__________________

Individual Record FamilySearch™ Pedigree Resource File
Maurice FitzMaurice Compact Disc #71 Pin #462540 Pedigree

Sex: M
Event(s) Birth: Offaly, Ireland Death: 1286 Ross,Herfordshire,England

Parents

Father: Maurice FitzGerald Disc #71 Pin #462551

Mother: Juliana de Cogan Disc #71 Pin #462552

Marriage(s)

Spouse: Emmeline de Longespee Disc #71 Pin #462541

Marriage:

=======================================================================================

https://en.wikipedia.org/wiki/Maurice_FitzGerald,_3rd_Lord_of_Offaly [updated 25 May 2015]

Maurice FitzGerald, 3rd Lord of Offaly
From Wikipedia, the free encyclopedia Maurice fitz Maurice Justiciar of Ireland

• Spouse(s) Maud de Prendergast
• Emmeline Longespee Issue
• ( by Emmeline Longespee)[This seems to be in error] Juliana FitzGerald, Lady of Thomond
• Father Maurice FitzGerald, 2nd Lord of Offaly
• Mother Juliana
• Born 1238
• Wexford, Ireland
• Died Before 10 November 1286
• Ross, County Wexford, Ireland

Maurice fitz Maurice (1238 – before 10 November 1286)[1] was an English magnate in Ireland, soldier, and Justiciar of Ireland from 1272 to 1273.

Career

He was born in 1238 in Wexford, Ireland, one of the sons of Maurice FitzGerald, 2nd Lord of Offaly and Juliana, whose surname is unknown. He had three brothers, Gerald fitz Maurice II (died 1243), Thomas fitz Maurice (died 1271), David fitz Maurice (died without issue). Maurice was known by the nickname of Maurice Mael (in English bald). He was granted his father's lands in Connacht in exchange for quitclaiming the barony of Offaly before 20 May 1257,[2] when his father Maurice fitz Gerald II died at Youghal Monastery. Before his father died, Maurice was custos of Offaly, but after Maurice fitz Gerald II died, the countess of Lincoln, Margaret de Quincy, sued him for custody of Offaly.[3] The next lord of Offaly was Maurice's nephew Maurice fitz Gerald III, son of his elder brother, Gerald fitz Maurice II who had died in 1243. Maurice fitz Gerald III must have been born within nine months of his father's death.[4] Once his nephew was 'full-age', Maurice fitz Maurice and Maurice fitz Gerald III captured the justiciar, Richard de la Rochelle, Theobald Butler IV, and John de Cogan I (whose son was married to Maurice fitz Gerald III's sister, Juliana). The capture of the three magnates led to a private war in Ireland, with the Geraldines on one side and Walter de Burgh and Geoffrey de Geneville on the other. However, the Second Barons' War in England forced them to come to a temporary peace while they battled Montfortians in the English Midlands in 1266.[5] Maurice III, drowned in the Irish Channel in July 1268, was the 3rd Lord of Offaly, and was succeeded by his own son, Gerald fitz Maurice III (born in 1263). Gerald's marriage was sold to Geoffrey de Geneville, who matched Gerald with his own daughter, Joan, but he died childless on 29 August 1287 [This seems to be in error].

In May 1265, Maurice fitz Maurice was among the chief magnates in Ireland summoned to inform King Henry III of England and his son Prince Edward about conditions in the country, and again in June 1265. These were the result of the private war between the Geraldines (Maurice and his nephew, Maurice fitz Gerald III) and Walter de Burgh, lord of Connacht (who was later made the 1st earl of Ulster). Maurice was appointed Justiciar of Ireland on 23 June 1272 following the accidental death of his predecessor, James de Audley on 11 June of that year; his father had served in the same capacity from 1232 to 1245. Maurice himself held the post until September 1273, when he was succeeded by Sir Geoffrey de Geneville, Seigneur de Vaucouleurs.

He held four knight's fees in both Lea and Geashill from Roger Mortimer, 1st Baron Mortimer who had inherited them from his wife, Maud de Braose.[6]

In 1276, he led a force of men from Connacht against the Irish of County Wicklow. Maurice's contingent joined the main army of English settlers jointly commanded by his son-in-law, Thomas de Clare, Lord of Inchiquin and Youghal who had been made Lord of Thomond earlier that same year, and Sir Geoffrey de Geneville, Maurice's successor as Justiciar of Ireland. The English under Thomas de Clare and Geoffrey de Geneville attacked the Irish at Glenmalure, but were defeated and suffered heavy losses.[7]

Marriages and issue

Sometime between May 1258 and 28 October 1259, he married his first wife, Maud de Prendergast, daughter of Sir Gerald de Prendergast of Beauvoir and an unnamed daughter of Richard Mor de Burgh. Together he and Maud had one daughters:[8]

Amabel FitzGerald, married but died childless.

Maurice was Maud's third husband. She died on an unknown date. In 1273, Maurice married his second wife, Emmeline Longespee (1252–1291), daughter of Stephen Longespee and Emmeline de Ridelsford. He and Emeline had one daughter.[9][This seems to be in error; Juliana is now believed to have been the daughter of Maud]

Juliana FitzGerald (d. 24 September 1300), married firstly, Thomas de Clare, Lord of Thomond, by whom she had four children; she married secondly Nicholas Avenel, and thirdly, Adam de Cretynges.

Maurice died sometime before 10 November 1286 at Ross, County Wexford. Emmeline Longespee then fought until her death to claim her dower against her daughter, Juliana, her step-daughter, Amabilia, and John FitzGerald, who would be created 1st Earl of Kildare on 14 May 1316. John was the son of his brother Thomas by Rohesia de St. Michael. John sued or physically took lands from the bailiffs of Emmeline, Juliana, and Amabilia.[10]

Notes

1. Jump up ^ http://www.thePeerage.com
2. Jump up ^ Red Book of the earls of Kildare, no. 31
3. Jump up ^ 35th Rep. Dep. Keeper of the PRI, p. 42; Cal. Doc. relating to Ireland, 1252-84, no. 563; B. Smith, ‘Fitzgerald, Maurice (c.1194-1257)’, Oxford DNB.
4. Jump up ^ The first indicator that Maurice fitz Gerald III was 'full-age' was a mandate to him by the Montfort-government in England in 1264, 21 years after his father's death. Cal. Doc. relating to Ireland, 1252-84, no. 750; CPR, 1258-66, p. 350
5. Jump up ^ R. Frame, 'Ireland and the Barons' Wars', in Ireland and Britain, 1170-1450, pp 62-3.
6. Jump up ^ Calendar of Documents., Ire. 125-84, p. 467
7. Jump up ^ Annette J. Otway-Ruthven, A History of Medieval Ireland, p. 202, Google Books, retrieved on 11-11-2009
8. Jump up ^ The Complete Peerage, Volume II, p.200
9. Jump up ^ Orpen, Normans, iv, 214, n.
10. Jump up ^ Cormac O Cleirigh, 'John fitz Thomas' PhD thesis, Trinity College (1996)

References

The Complete Peerage, Volume II, p. 200
Charles Cawley, Medieval Lands, Ireland