William of Orange

William of Orange usually refers to either:

William the Silent, William I, (1533–1584), Prince of Orange, leader of the Dutch Revolt, founder of the House Orange-Nassau and the United Provinces as a state
William III of England, William III of Orange-Nassau, William II of Scotland, (1650–1702) stadtholder of the Dutch Republic

William of Orange may also refer to:

Middle Ages

Saint William of Gellone (755 – c. 812), courtier of Charlemagne who defeated the Saracens at Orange
William (Bishop of Orange) (d. 1098), a Bishop who joined the First Crusade

William II, Prince of Orange (1626–1650), stadtholder of the United Provinces of the Netherlands from 1647
William IV, Prince of Orange (1711–1751), first hereditary stadtholder of the Netherlands
William V, Prince of Orange (1748–1806), last Stadtholder of the Dutch Republic and leader of the conservative faction

William I of the Netherlands (1772–1843), also known as William Frederik of Orange-Nassau or William VI of Orange before his accession
William II of the Netherlands (1792–1849), King of the Netherlands and Grand Duke of Luxembourg
William III of the Netherlands (1817–1890), King of the Netherlands and Grand Duke of Luxembourg
William, Prince of Orange (1840–1879), eldest son of William III, died before his father
Willem-Alexander, King of the Netherlands (b. 1967), King of the Netherlands, eldest child of former Queen Beatrix

William of Orange (pigeon), pigeon used by British military in Battle of Arnhem in September 1944