Background
Isabel was born in about 1320.
Isabel was born in about 1320.
She had nine older siblings, including John de Beaumont, 2nd Lord Beaumont. Isabel"s paternal grandparents were Louis of Brienne, Viscount de Beaumont, and Agnes, Viscountess de Beaumont. Her maternal grandparents were Alexander Comyn, Sheriff of Aberdeen and Joan le Latimer.