John de Berkeley, 1st Baron Marmion

Peerage person ID=41777 (b. 1249)

Parents

• Sir William Marmion, of Tanfield
• Maurice de Berkeley
• Isabel FitzRoy
• Lorette de Dover

Children

• John de Berkeley, 2nd Baron Marmion

Siblings

• Maurice de Berkeley
• Lora de Berkeley
• Robert de Berkeley
• Thomas de Berkeley, 1st Baron Berkeley