Origin: NormFr Willaume < OHG Willehelm < willeo, will + helm, protection: see helm
- 1027?-87; duke of Normandy who invaded England & defeated Harold at the Battle of Hastings: king of England (1066-87): called William the Conqueror
- 1533-84; prince of Orange (1544-84) & count of Nassau (1559-84): founder and 1st stadholder (1579-84) of the Netherlands republic: called William the Silent
- 1797-1888; king of Prussia (1861-88) & emperor of Germany (1871-88): son of Frederick William III
- 1056-1100; king of England (1087-1100): son of William the Conqueror: called William Rufus
- 1859-1941; emperor of Germany & king of Prussia (1888-1918): called Kaiser Wilhelm
- 1650-1702; king of England, Scotland, & Ireland (1689-1702): stadholder of the Netherlands (1672-1702)
- 1765-1837; king of Great Britain & Ireland (1830-37): son of George III
Used by arrangement with John Wiley & Sons, Inc.
also Wil·helm 1882-1951.