From Foundatin for Medieval Genealogy: http://fmg.ac/Projects/MedLands/ENGLISHNOBILITYMEDIEVAL3P-S.htm

MATILDA de Saint-Hilaire .  Robert of Torigny records that "Willermus de Albineio…comitem d'Arundel…[filium] Guillermum de Albineio primogenito" and "relictam Rogerii comitis de Clara filiam Jacobi de Sancto Hilario"[1047].  Her name is confirmed by the undated charter which records that “Wilielmus comes Sussexiæ” confirmed donations to Boxgrove Priory by his predecessors “Rogerus de Albineio, et Willelmus Pincerna…et Willielmi patris mei filii reginæ Aeliz, et Matildis matris meæ”[1048].  m firstly ROGER de Clare Earl of Hertford, son of RICHARD FitzGilbert de Clare Lord of Clare & his wife Agnes [Alicia] of Chester (-1173).  m secondly WILLIAM de Albini, son of WILLIAM Earl of Arundel & his wife Adelisa de Louvain (-24 Dec 1193, bur Wymondham Priory).  He was restored as Earl of Arundel in 1190.