William, Count of Évreux

He was the count of Évreux (Latin: Willelmus Comes Ebroicensis; ruled c. 1067–1118) in Normandy as well as additional lands and expanded his holdings by consenting to the marriage of his young ward and niece Bertrade to Fulk the Rude of Anjou, whose support against the Manceaux rebels was important for William's liege Robert Curthose.

[5] The document listing him as count reports that he contributed 80 ships to Duke William's invasion fleet,[3] although he seems to have been very young at the time—possibly even a minor[6]—and received very little from the spoils of the Norman conquest, only a modest tenancy-in-chief.

[11] William only consented to the marriage in exchange for Robert's restoration of numerous estates which had previously belonged to his uncle Ralph the Asshead.

[11] In 1092, having given birth to Fulk's son and heir, Bertrade eloped with or was abducted by King Philip I of France and thereafter reigned as his queen consort.

[20] As Count William became older and somewhat feeble, Helvise—who had always possessed a great deal of influence over her husband[22]—assumed most of the rule of Évreux directly.

[23] The couple donated lands to the Abbey of Saint Martin at Troarn and founded a new monastery at Noyon with council from Roger, abbot of St Evroul.

[25] The English historian Orderic Vitalis noted that "the Countess was distinguished for her wit and beauty; she was one of the tallest women in all Evreux, and of very high birth.

[23] On one, he was exiled to Anjou in November or December 1111 but restored in the peace that led to its count Fulk V pledging fealty to Henry the next year.

[27] The fact he died without children caused Henry I of England problems, since his heir Amaury III de Montfort was a vassal of Louis VI of France.