- Born: Abt 1105-1126, Pembroke, Pembrokeshire, Wales
- Marriage: Sibyl de Salisbury in 1143 in Pembroke, Pembrokeshire, Wales 141
- Died: 1165 about age 60 141
Another name for John was John "the Marshal."
Noted events in his life were:
• Background Information. 141
John FitzGilbert, styled also John the Marshal, 1st son and heir of Gilbert le Marshal, succeeded to his father's lands and office in or shortly before 1130, when he owed 22.13.4 marks for them. He then held land in Wiltshire, and owed 40 marks silver for the office of supplying fodder for the royal horses in his charge, as well as 30 marks silver for the land and daughter of Walter Pipard.
John was with Henry I in Normandy in 1137 and in England in 1138, in which year he fortified the castles of Marlborough and Ludgershall. In 1140 he held Marlborough for the King, and captured Robert Fitz Hubert, who had taken the royal castle of Devizes. After Stephen had been taken prisoner at Lincoln, John joined the Empress, with whom he was at Reading in May, at Oxford in July. He was again with her at Winchester in Aug-Sep 1141, where in the final rout he was cut off and surrounded in Wherwell Abbey, but escaped with the loss of an eye and other woundsIn
1142 he was again with the Empress at Oxford, and some 2 years later at Devizes. In 1144 he was raiding the surrounding country form Marlborough Castle and oppressing the clergy. He was with Maud's son Henry at Devizes in 1149 and 1153; and in 1152 Newbury Castle was defended by his constable against Stephen. After Henry's accession John was granted Crown lands in Wiltshire worth 82 marks per annum, including Marlborough Castle; but he had to surrender the castle in 1158. He was present at the Council of Clarendon in 1164; soon after which he sued Thomas Becket for part of his manor at Pagham, in Sussex. John was a benefactor to the priory of Bradenstoke, the abbey of Troarn, and the Templars.
For his 1st wife, John married Aline, who may have been the daughter and heir of Walter Pipard. He is said to have repudiated her circa 1141, and he married, as his 2nd wife, Sibyl, sister of Patrick de Salisbury, 1st Earl of Witshire, and daughter of Walter de Salisbury, hereditary sheriff of Wiltshire and constable of Salisbury Castle, by Sibyl, daughter of Patrick de Chaources (Chaworth). John died in 1165, before Michaelmas.
~Cokayne's Complete Peerage, 2nd Edition, (Appendix B), Vol. X, pp. 93-95
John married Sibyl de Salisbury, daughter of Walter de Salisbury and Sibyl de Chaworth, in 1143 in Pembroke, Pembrokeshire, Wales.141 (Sibyl de Salisbury was born about 1120 in Pembroke, Pembrokeshire, Wales.)