Gerald Fitz Walter; Constable of Pembroke Castle by 1092, when he held off a Welsh attack; commanded troops against native Welsh in SW Wales 1095; travelled to Ireland 1100 to seek the hand in marriage of King Murrogh's daughter for his overlord Arnulf de Montgomery; on Arnulf's disgrace 1102 was made full Keeper of Pembroke Castle by Henry I. [Burke's Peerage]
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Granted Mulsford, Berks. by Henry I; Constable of Pembroke Castle, 1108
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GERALD, younger son of Walter and Beatrice, was constable, under Arnulf de Montgomery, of his castle of Pembroke, and successfully defended it when besieged by the Welsh in 1092. In 1095 he led a military expedition against the Welsh on the borders of what is now Pembrokeshire, and in 1100 went to Ireland to demand for Arnulf the daughter of King Murrough in marriage. Arnulf was deprived of his estates and exiled by Henry I in 1102, and the King granted the custody of Pembroke Castle to Gerald.
He married Nest, daughter of Rhys ap Tudor Mawr, PRINCE OF SOUTH WALES (e). The date of his death is not known, presumably before 1136. [Complete Peerage X:10-11, (transcribed by Dave Utzinger)]
(e) In 1106, when Owen ap Cadugan carried her off, two of her sons and a daughter by Gerald de Windsor were taken with her, the sons being returned later to their father. By Stephen, constable of Cardigan (query after Gerald's death), Nest bore a son, Robert FitzStephen, and by Henry I a son Henry (killed 1158), father of Meiler FitzHenry, which Robert and Meiler were later brothers-in-arms of the Geraldines in Ireland. For the descendants of Gerald and Nest see chart pedigree sub Kerry. Their 3rd son was David II, Bishop of St. Davids; and their daughter Angharad (or Ankaret) was, by William de Barri of Manorbier, mother of sons, among whom was Gerald de Barri, otherwise Giraldus Cambrensis, who Expugnatio Hibernica is one of the principal sources of information about the Norman conquest of Ireland by his uncles and cousins and their companions in adventure.