William ( - )
William - 2nd Earl of Eu ( - 1057-1058)
William - 4th Earl of Eu ( - )
William - 6th Earl of Eu ( - )
William - Duke of Cumberland ( - 1765)
William - Seigneur de Semur ( - )
William I "Longsword" - Duke of Normandy (ABT. 900 - 943)
William I "The Conqueror" - King of England (ABT. 1017 - 1087)
William I "The Lion" - King of Scotland (1143 - 1214)
William I - Count of Holland (ABT. 1174 - 1222)
William I - Count of Provence ( - 994)
William I - Duke of Aquitaine (ABT. 915 - 963)
William II "Bras de Fer" - Duke of Aquitaine (ABT. 937 - 995)
William II "Taillefer" - Count of Toulouse (ABT. 947 - 1037)
William II (Rufus) - King of England ( - 1100)
William II Talvas - Count of Ponthieu (1179 - 6 Oct 1221)
William III "The Great" - Duke of Aquitaine (ABT. 969 - 31 Jan 1029/30)
William III d'Avesnes - Count of Hainault (ABT. 1286 - 1337)
William IV "Taillefer" - Count of Angouleme ( - 1179)
William IV - Count of Toulouse (1040 - 1093)
William IV - King of England (21 Aug 1765 - 20 Jun 1837)
William VI - Duke of Aquitaine (ABT. 1024 - 25 Sep 1086)
William VII - Duke of Aquitaine (1071 - 10 Feb 1126/27)
William VIII - Duke of Aquitaine (1099 - 9 Apr 1137)
Winilda ( - )
Wiprand - Count of Como ( - 999)
Wladimir II - Grand Prince of Kiev (1053 - 1125)
Wladislaw I Hermann - King of Poland (ABT. 1040 - 1102)