3rd Baron de Berkeley Thomas (The Rich) de Berkeley
Thomas, known as The Rich, was born in 1293 in Berkeley, Gloucestershire, England.¹   He died at the age of 68 on October 27th, 1361 in Berkeley Church, Gloucestershire, England.¹ 

 Margaret de Mortimer
Margaret was born in 1308 in Berkeley, England.² 

 Maurice (The Valiant) de Berkeley
Maurice, known as The Valiant, was born in 1330 in Berkeley, England.³