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1. RICHARD d'Avranches ([1093]-drowned off Barfleur, Normandy 25 Nov 1120). Orderic Vitalis names “Ricardum Cestrensis comitatum hæredum” as the child of “Hugonis de Abrincis filio Ricardi cognomento Goz” and his wife “Ermentrudem filiam Hugonis de Claromonte Belvacensi”, adding that he died “juvenis” and childless “VII Kal Dec” in the shipwreck “cum Guillelmo Adelino Henrici regis Anglorum filio”[34]. A manuscript narrating the descent of Hugh Earl of Chester to Alice Ctss of Lincoln records that “Richardus filius eius” was “puer septem annorum” when he succeeded “Hugo primus comes Cestriæ”[35]. His date of birth is estimated from the Annales Cestrienses which record the death in 1101 of “Hugone comite Cestrensi” and the succession of “Ricardus puer vii annorum”[36]. He succeeded his father in 1101 as Earl of Chester and Vicomte d'Avranches. William of Malmesbury records that Richard drowned with his wife following the sinking of the “Blanche Nef [White Ship]”[37]. The Continuator of Florence of Worcester names "…Ricardus comes Cestrensis, Otthuel frater eius…" among those drowned in the sinking of the White Ship[38]. The Annales Cestrienses record that “in die S. Katerine” 1120 “filius regis et Ricardus comes Cestrie cum uxore sua” were sunk “apud Barbelfleo”[39].
m (1115) MATHILDE de Blois, daughter of ETIENNE Comte de Blois & his wife Adela de Normandie (-drowned off Barfleur, Normandy 25 Nov 1120). Her parentage and marriage are recorded by Orderic Vitalis[40]. The Annales Cestrienses record the marriage in 1115 of “Ricardus comes Cestriæ” and “Mathildam neptem Henrici regis filiam Stephanis comitis”[41]. William of Malmesbury records that she drowned with her husband following the sinking of the “Blanche Nef [White Ship]”[42]. The Continuator of Florence of Worcester names "…neptis regis Comitissa de Cestria" among those drowned in the sinking of the White Ship[43]. The Annales Cestrienses record that “in die S. Katerine” 1120 “filius regis et Ricardus comes Cestrie cum uxore sua” were sunk “apud Barbelfleo”[44].
