On 25 Nov 1120 the White Ship left Barfleur with a party of young Normans. Henry "Beauclearc" I King England (52) had left earlier on another ship. A mile out the White Ship foundered on a submerged rock. All bar one were drowned. The event had a significant impact on the succession leading to the Anarchy during which first cousins Empress Matilda (18) , daughter of Henry "Beauclearc" I King England (52) , his only remaining legitimate child, and Stephen I King England (26) , son of Adela Normandy (53) (daughter of William the Conqueror), waged war over the succession. William Adelin Normandy Duke Normandy (17) , his half-siblings Richard Fitzroy (19) and Matilda Fitzroy, William Bigod, Lucia-Mahaut Blois, brothers Geoffrey Aigle and Engenulf Aigle, half-brothers Richard Avranches 2nd Earl Chester (26) and Ottiwel Avranches, brothers Ivo Grandesmil and William Grandesmil and Geoffrey Ridel were all drowned. [Sinking of The White Ship].
GrandFather: Richard Avranches Viscount Avranches
1G GrandFather: Thorstein Avranches Viscount Avranches
2G GrandFather: Ansfred "Dane" Avranches
GrandMother: Emma Mortain
1G GrandFather: Herluin de Conteville Mortain
1G GrandMother: Herleva Unknown
Mother: Ermentrude Claremont