The White Ship sinks in the English Channel, drowning William Adelin, son and heir of Henry I of England.

The White Ship was a vessel transporting many nobles, including the heir to the English throne, that sank in the English Channel near the Normandy coast off Barfleur during a trip from France to England on 25 November 1120. Only one of approximately 300 people aboard, a butcher from Rouen, survived.

The English Channel, also known as the Channel, is an arm of the Atlantic Ocean that separates Southern England from northern France. It links to the southern part of the North Sea by the Strait of Dover at its northeastern end. It is the busiest shipping area in the world.

William Ætheling (Middle English: [ˈwiliəm ˈaðəliŋɡ], Old English: [ˈæðeliŋɡ]; 5 August 1103 – 25 November 1120), commonly called Adelin, was the son of Henry I of England by his wife Matilda of Scotland, and was thus heir apparent to the English throne. His early death without issue caused a succession crisis, now known in English history as the Anarchy.

Henry I, also known as Henry Beauclerc, was King of England from 1100 to his death in 1135. He was the fourth son of William the Conqueror and was educated in Latin and the liberal arts. On William's death in 1087, Henry's elder brothers Robert Curthose and William Rufus inherited Normandy and England, respectively, thereby leaving Henry landless. He subsequently purchased the County of Cotentin in western Normandy from Robert, but his brothers deposed him in 1091. He gradually rebuilt his power base in the Cotentin and allied himself with William Rufus against Robert.