Maurice III De Berkeley
Maurice III De was born in 1298 in Berkeley Castle, Thornbury, Gloucestershire, England.  He died at the age of 50 on February 12th, 1348 in Calais, France.

 Margaret De Berkeley
Margaret De was born in 1302 in Uley, Dursley, Gloucestershire, England.  She died at the age of 47 in 1349 in Berkeley, Gloucestershire, England.

 Mabel Berkeley
Mabel was born about 1326 in Berkeley, Gloucestershire, England.