William Plantagenet

For reigning monarchs of England named William, see William the Conqueror, William II of England, William III of England, and William IV of the United Kingdom.

William of England (French: Gulliame, Latin: Gulielmus; June 19, 1177 – June 22, 1177) was an English prince and heir presumptive to the throne of the Kingdom of England, as the first and only son of Henry the Young King and Margaret of France. Due to his father's other titles, his name can be variously given as William of Normandy, William of Anjou or the Latin Gulielmus, rex filius (literally "William, son of the King").

William was born in somewhat of an interregnum between wars, as the Revolt of 1173-1174 had ended three years prior to his birth and a campaign in the Limousin against his grandfather and his uncle Richard would kill his father in 1183. Through his father, William was a grandson of Henry II of England and Eleanor of Aquitaine. Through his mother, he was a grandson of Louis VII of France and Constance of Castile. He was also a descendant of Alfonso VII of León and Castile. His only maternal cousin was Marie, Countess of Ponthieu (1199 – 1252).

His father became heir apparent to the throne in April of 1156, when his older brother William IX, Count of Poitiers died aged two. He was crowned as junior king in June of 1770, and married Margaret of France, a French princess.

Margaret became pregnant in early 1177, but she delivered early during a trip to France and her baby was born in Paris on June 19. The child, who was in poor health, was baptised William. He died three days later in Paris, but his burial place is not known.

Succession

William Plantagenet House of Plantagenet Cadet branch of the Angevin House of Châteaudun Born: 19 June 1177 Died: 22 June 1177
English royalty
Preceded by Richard, Duke of Aquitaine	Heir to the English throne 19 June 1177 – 22 June 1177	Succeeded by Richard, Duke of Aquitaine