“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” to Boxgrove Priory by undated charter, which names “domina Avicia, uxor Rogeri de Albineio…et filiorum suorum Willielmi et Nigelli”.
He succeeded his father in 1193 as Earl of Arundel. “Willelmus comes tertius Sussexiæ” confirmed the donation of "terram de Snergate, quæ est de feodo de Bilsentone" made to Robert’s Bridge Abbey by “Adeliciæ comitissæ de Augo amitæ meæ”, by undated charter, witnessed by “Renerio de Aubenio, Willielmo de Albineio filio comitis…”.
Matthew Paris records the death in 1221 “in partibus transmarinis, a Damata rediens” of “Willelmus de Albineio comes de Harundelle”, the transport of his body back to England by “Thomam monachum de Sancto Albino”, and his burial “apud Wimundham Sancti Albani prioratum”. The Annales Londonienses record the death in 1221 of "Willelmus de Albineio comes de Arundel…de Terra Sancta rediens" and his burial "apud Wymundham". The Annals of Dunstable record that “comes Arundel” died in 1221 in Italy and his body brought back for burial at “apud Wimundeham”. 1