William I of England

Siblings
1. Adelaide, Countess of Aumale  (1030-90) (60 years)

 Maternal Half-Siblings 

2. Robert, Count of Mortain  (1031-90) (59 years)

3. Odo, Lord-Bishop of Bayeux  (1036-97) (61 years)

4. Emma, Viscountess of Avranches  (1039-66) (27 years)