William de Grandison, 1st Baron Grandison

Peerage person ID=118570 (b. 1300)

Parents

• Peter de Grandson
• Agnès von Neuenburg

Children

• Agnes de Grandson
• Mabel de Grandson
• John Grandison
• Peter de Grandison
• Catherine Montagu, Countess of Salisbury
• John Grandisson

Siblings

• Gerard of Grandson
• Henri III of Grandson
• Willelmeta von Grandson
• Otto de Grandson

Partners

• Sibylla de Tregoz