William I may refer to:

Kings

William the Conqueror William the Conqueror (Bates ''William the Conqueror'' p. 33– 9 September 1087), sometimes called William the Bastard, was the first Norman king of England (as William I), reigning from 1066 until his death. A descendant of Rollo, he was D ...

(–1087), also known as William I, King of England *

William I of Sicily William I (1120 or 1121 7 May 1166), called the Bad or the Wicked (), was the second king of Sicily, ruling from his father's death in 1154 to his own in 1166. He was the fourth son of Roger II and Elvira of Castile. William's title "the Bad" ...

(died 1166) * William I of Scotland (died 1214), known as

William the Lion William the Lion (), sometimes styled William I (; ) and also known by the nickname ; e.g. Annals of Ulster, s.a. 1214.6; Annals of Loch Cé, s.a. 1213.10. ( 1142 – 4 December 1214), reigned as King of Alba from 1165 to 1214. His almost 49 ...

* William I of the Netherlands and Luxembourg (1772–1843) * William I of Bimbia () * William I of Württemberg (1781–1864) *

William I, German Emperor Wilhelm I (Wilhelm Friedrich Ludwig; 22 March 1797 – 9 March 1888) was King of Prussia from 1861 and German Emperor from 1871 until his death in 1888. A member of the House of Hohenzollern, he was the first head of state of a united Germany. ...

(1797–1888)

Nobles

* William I of Gascony (died 848) *

William I of Aquitaine William I (22 March 875 – 6 July 918), called the Pious, was the Count of Auvergne from 886 and Duke of Aquitaine from 893, succeeding the Poitevin ruler Ebalus Manser. He made numerous monastic foundations, most important among them the fou ...

(died 918) * William I of Montferrat () * William I of Normandy (–942) * William I of Montpellier () *

William I of Provence William I ( 950 – after 29 August 993), called the Liberator, was Count of Provence from 968 to his abdication. In 975 or 979, he took the title of ''marchio'' or margrave. He is often considered the founder of the county of Provence. He and his ...

(–993) * William I Talvas (–after 1030), seigneur of Alençon *

William Iron Arm {{Infobox noble , name = William Iron Arm , title = , image = {{CSS image crop, Image = Statue cathédrale Coutances Guillaume Bras-de-fer.JPG, bSize = 607, cWidth = 235, cHeight = 247, oTop = 175, oLeft = 178, Location = center , caption = S ...

(before 1010–1046), Duke of Apulia * William I, Bishop of Utrecht (died 1076) * William I, Count of Nevers (–after 1083) * William I, Count of Burgundy (1020–1087) * William de Warenne, 1st Earl of Surrey (died 1088) * William I of Cerdanya (1068–1095) *

William I of Bures William of Bures (died before the spring of 1144, or around 1157) was Prince of Galilee from 1119 or 1120 to his death. He was descended from a French noble family which held estates near Paris. William and his brother, Godfrey, were listed among ...

(died 1142), French crusader * William I of Béarn (died 1173) *

William le Gros, 1st Earl of Albemarle William le Gros, William le Gras, William d'Aumale, William Crassus (died 20 August 1179) was Earl of York and Lord of Holderness in the English peerage and the Count of Aumale in France. He was the eldest son of Stephen, Count of Aumale, and his ...

(died 1179) * William I of Geneva () * William of Champlitte (died 1209), Prince of Achaea * William I of Cagliari (–1214) * William I, Lord of Douglas (died ) * William I, Count of Holland (–1222) * Uilleam I, Earl of Ross (died 1274) * William I de la Roche (died 1287), Duke of Athens * William I, Count of Hainaut (1286–1337) * William I, Duke of Bavaria (1330–1389) * William I of Guelders and Jülich (1364–1402) *

William I, Margrave of Meissen William I, the One-Eyed (19 December 1343, Dresden – 9 February 1407, Schloss Grimma) was Margrave of Meissen. His nickname is related to the legend that Saint Benno appeared to him because of his disputes with the Church in a dream and he ...

(1343–1407), known as William I, the one-eyed * William I, Landgrave of Hesse (1466–1515) *

William I, Count of Nassau-Siegen William I of Nassau-SiegenIn many sources he is called William I of Nassau(-Dillenburg) and in some sources of Nassau-Katzenelnbogen. He was born with the titles Count of Nassau, Vianden and Diez. Two years before his death, he obtaine ...

(1487–1559) *

William the Silent William the Silent or William the Taciturn (; 24 April 153310 July 1584), more commonly known in the Netherlands as William of Orange (), was the leader of the Dutch revolt against the Spanish Habsburg Netherlands, Habsburgs that set off the ...

(1533–1584), Prince of Orange * Guglielmo I Gonzaga (1538–1587), Duke of Mantua *

William I, Elector of Hesse William I, Elector of Hesse (; 3 June 1743 – 27 February 1821) was the eldest surviving son of Frederick II, Landgrave of Hesse-Kassel (or Hesse-Cassel) and Princess Mary of Great Britain, the daughter of George II of Great Britain, George II. ...

(1743–1821)

Kings

Nobles

See also