On the night of 25 November 1120, the White Ship was wrecked off the coast of Normandy near Barfleur. Among the dead was William Ætheling, only legitimate son and heir of Henry I of England ⓘ.

Contemporary chroniclers, including Orderic Vitalis and William of Malmesbury, report that the crew and many of the young nobles aboard had been drinking heavily before departure. The vessel, newly built and reputedly fast, left harbour after the king’s ship and attempted to overtake it. In the darkness it struck the submerged rock of Quillebœuf and capsized in the freezing water.

Most on board drowned. William Ætheling initially survived by reaching a small boat, but, hearing the cries of his half-sister Matilda of Perche, ordered the boat to turn back. It was overwhelmed, and he too was lost. Only a single survivor, a butcher from Rouen, was said to have escaped.

Stephen of England ⓘ had intended to sail but withdrew shortly before departure, reportedly because of a sudden illness. Chroniclers emphasise the heavy drinking that preceded the voyage, and some later writers suggested that Stephen’s indisposition may have been related to these festivities. Whatever the cause, his absence proved historically consequential.

The news was brought to Henry I the following day. Chroniclers record that he was overcome with grief and that he never smiled again. Whether literary motif or genuine memory, the detail conveys the scale of the loss: not only a son, but the stability of the Anglo-Norman succession.

The death of William Ætheling left Henry without a legitimate male heir. In response, he required his barons to swear allegiance to his daughter, Empress Matilda ⓘ. Despite these oaths, her claim was contested upon Henry’s death in 1135 by Stephen, leading to the prolonged civil conflict later known as the Anarchy.

The sinking of the White Ship thus stands as a pivotal turning point in English dynastic history.