Arnulf de Montgomery

  Noted events in his life were:

• Web Reference: Arnulf of Montgomery from Wikipedia.
Arnulf de Montgomery was the younger son of Roger de Montgomery, vicomte of Hièmois and Mabel de Bellême. Arnulf's name first appears in 1082/83 when he and his older brother, Roger the Poitevin, witness William's confirmation of their father's grant to the Norman abbey of Troan.

• Background Information: Taken from Roger de Montgomery. ¹³⁰¹
Arnulf, Earl of Pembroke (fl. 1110), fifth son of Roger de Montgomery, obtained Dyved or Pembroke as his share by lot [Ord. Vit. ii. 423, iii. 425– 6; Brut y Tywysogion, p. 67]. He built the castle of Pembroke 'ex virgis et cespite' about 1090 [ib.; Gir. Cambr. vi. 89]. The same year he was fighting for Robert of Bellême, and twelve years later he took a chief part in the rebellion against Henry I. Arnulf sent for help to Ireland, and asked for the daughter of Murchadh [q. v.], king of Leinster, in marriage, which was easily obtained. He crossed over to Ireland to receive his wife, and is said to have supported the Irish against Magnus of Norway, and aspired to obtain the kingdom of Ireland. Murchadh, however, took away his daughter Lafacroth, and schemed to kill Arnulf. Subsequently Arnulf was reconciled to Murchadh and married to Lafacroth, but he died the day after the wedding [Ord. Vit. iv. 177– 8, 193– 4; Brut, pp. 69, 73]. He founded the priory of St. Nicholas in the castle at Pembroke as a cell of St. Martin Séez, 27 Aug. 1098 [Dugdale, Monast. Angl. iv. 320, vi. 999]. The Welsh family of Carew claims descent from Arnulf.

~Dictionary of National Biography, Volume 49, p. 103

• Web Reference: Charles Cawley's Medieval Lands, Arnoul de Montgommery.
Arnoul de Montogommery married Lafracoth of Munster, daughter of Murtach o'Brien, King of Munter. Lafracoth is named daughter "of an Irish king named Murchertach" by Orderic Vitalis [ Orderic Vitalis (Chibnall), Vol. VI, Book XI, p, 31]. The Annals of Inisfallen record that "Muirchertach Ua Briain made a marriage alliance with the French and with Norsemen" in 1102. [Seán Mac Airt (ed.) (1951) The Annals of Inisfallen (Dublin), 1102.6, p. 259]

Arnulf married Lafacroth Ua Briain, daughter of Muirchertach Ua Briain and Unknown, in 1102 in Dublin, Ireland. (Lafacroth Ua Briain was born in Ireland.)