WILLIAM FitzAlan, son of ALAN FitzFlaald & his [second] wife Adeline [Aveline] d'Hesdin (-1160). He founded the Augustinian priory of Haughmond in Shropshire in [1130/38], which became an abbey in 1155[59]. The Gesta Stephani Regis names "Willelmus filius Alani" among the supporters of Empress Matilda in the English civil war[60]. "William Fitz Alan" donated the fishery of Upton-upon-Severn to Haughmond abbey by undated charter, witnessed by "Walter his brother, Christiana his wife…"[61]. A charter of Henry II King of England, dated 1176, recites donations to Haughmond abbey including that of "Willielmus filius Alani" of "terram de Piperinges" previously enjoyed by "Aveline matris ipsius Willielmi filius Alani"[62]. He was Sheriff of Shropshire in 1138[63] and in [1155/56]. The 1156 Pipe Roll records "Wills fili Alani. Redd Comp." in Shropshire[64]. “Ric comes de Arundell et dom de Albo” confirmed donations of property by “bonæ memoriæ Wil. filii Alani antecessoris nostri” to Shrewsbury Abbey by charter dated “die Martiis in festo Annunciationis beatæ Mariæ anno regni regis Edwardi vicesimo”[65]. The Red Book of the Exchequer refers to "Willelmo filio Alani i m" in Warwickshire, Leicestershire in [1161/62][66].
m firstly CHRISTIANA, niece of ROBERT FitzRoy Earl of Gloucester, daughter of ---. Orderic Vitalis records that "William fitz Alan castellan and vicecomes of Shrewsbury" married "a niece of Robert Earl of Gloucester"[67]. "William Fitz Alan" donated the fishery of Upton-upon-Severn to Haughmond abbey by undated charter, witnessed by "Walter his brother, Christiana his wife…"[68].