He married Maud, not her sister Agnes. (Agnes married (1) Eustace fitz John (2) Robert fitz Count)

https://archive.org/details/The_Gresleys_of_Drakelowe/page/n224/mod...

Robert's son Albert, second Baron Grelly, generally distin- guished from his son as 'senex,' married Agnes daughter William Fitz-Nigel, Baron of Halton in Cheshire. In the Life of App> D -
St. William of Norwich by Thomas of Monmouth (published in

1896) there is a chapter 'De Niso Alberti Gressle mire curato,'
in which Albert is described a as having cured the sickness of a p. 258.
his favourite falcon in a.d. 1154 by praying to St. William, and
as having gone with his father, to fulfil his vow of an annual
offering, to Norwich, where the author of the Life spoke with them
both. Albert must have died before 1174, when his heir Albert
was in the King's custody and n years old. Of his three
daughters, Emma married Orme the son of Ailward, and Amabel
was the wife of Geoffrey Trezgoz. It is possible that the third
daughter was the Barbara who occurs in an inexplicable pedigree
of the Quadrings, to be found in E. Oldfield's Wainfleet (Lond.
1829), p. 217, and in Visitations of Lincolnshire in the Genealogist,
Old Series, iv. 269, vi. 277. This Barbara or Berseba is the
daughter of 'Sir Robert Grisley Knight,' and seems to be of
about the date 1230-50 : she is recorded to have married Hamon
son of Geoffrey Quadring, and had a son James. If this Barbara
be a Gresley and not a Grelly, I cannot place her in any known
pedigree. On the other hand some authorities give the name
of Albert's third daughter as Edith, and state that she married
Gilbert de Nocton.

Farrer (VCH Lancs Vol. 1, 1906): https://archive.org/details/victoriahistoryo01farruoft/page/328/

Co-founder with his father of a monastery at Swineshead, Lincs, in 1134.

Farrer says he was a witness in or soon after 1163, but was certainly dead by 1170, citing Monasticon v 337.

The family of Greslet, as they are styled in the Doomsday Survey, or Gresley or Gressy as designated in the Battle Roll Catalogue of Hastings Abbey, also came to England with the Conqueror. At times this family were also known by the name Grelle or Gresle.

In 1086, Albert de Gresley obtained a grant of the Manor of Mamecestre, which became part of the Barony of Gresley. Albert was, therefore, the first Baron of Mamecestre. Albert, his son succeeded him, and Robert de Gresley eventually succeeded him.

In 1215 Robert, a knight of the King, had a warrant for 6 harts (stags) to be taken in the Royal forest of Clive for restocking his park at Blackley and/or at Horwich Chase. The Lord's Deer Park was located at Blackley.

Robert was described as a patriotic Baron whose name ranks high in the annals of the country. In 1215 he was one of a number of Northern Barons who went to London to demand from [King] John the laws of Edward the Confessor and the rights and privileges of Henry I.

http://www.lan-opc.org.uk/Manchester/Blackley/history.html

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Albert de Gresle From Wikipedia, the free encyclopedia https://en.wikipedia.org/wiki/Albert_de_Gresle

Albert de Gresle was a non-resident lord of the manor of Manchester. Initially the Gresle family, who were Normans, lived elsewhere. Stewards represented them, and the manor continued to develop in their absence.

The first Gresle to actually live in Manchester was Robert Gresle (1174–1230), and his presence is believed to have led to an influx of skilled workers. In the early 13th century, Manchester was not under the control of the Gresle family for a period of time. Robert Gresle was one of the barons who made King John sign the Magna Carta. Gresle was excommunicated for his role in the rebellion and when King John later ignored the terms of the Magna Carta, Gresle forfeited his lands. King John died in 1216 and the land was returned to Robert Gresle on behalf of King Henry III. Medieval Manchester was centered on the manor house and the church of St Mary mentioned in the Domesday Book. The castle in Manchester overlooked the rivers Irk and Irwell where the Chethams School of Music stands today. The Gresle family directly leased land to tenants and created burgage tenements for indirect rent.

The following is an abstract of the charter quoted in the note to the concord No. 29, page 162.

Albert Gresle, to all his friends, as well French as English, sendeth greeting. Know ye that I have given, and by this my charter confirmed to Roger Gresle, son of Horm, and his heirs, all my lands of Haistune, with all the appurtenances, and all the land called Osolue's Crouet, and all Hetune with all the appurtenances, and large liberties, easements, and free customs; to hold of me and my heirs, as the same Roger held of my father, and for the same service, to wit, for Haistun twenty shillings, or one sor sparrow-hawk, and for Hetune in like manner twenty shillings. Witnesses, Roger de Merci (Marsey, who died 1185), John de Ancotes, Ralph de Birun, Robert son of Seifrid, Robert son of Henry, Geoffrey Gresle, William de Merci (Marsey), and Bernard Gresle.[1]

— Albert Gresle, Kuerden s MSS., Heralds' College, London, Vol. III., K. fol. 6 b. [S.D. 1160–1182].

(https://www.british-history.ac.uk/lancs-final-concords/vol1/pp160-1...)

Mamchestre pg 36 chap IV

Albert favorite of Roger De poictiu living 1086 -1100 held land in a wide circle of lands of which Horwich Moor was the center, later termed the Upper Bailiwick of the Lordship. He is generally regarded as the first baron of manchester. Robert was succeeded by his son Albert who lived 1135 - 1166 he called himself senex or old Albert his son having the same name. In 1166 this Albert gave Thomas de Perponte three carves of land at Ruhwinton and Lestoc for the third of one knights fee.

Mamchestre

References

Jump up ^ 'Appendix: Additional material to fines', Final Concords for Lancashire, Part 1: 1189-1307 (1899), pp. 216–219. URL: http://www.british-history.ac.uk/report.aspx?compid=52543&strquery=... Date accessed: 8 February 2009.