James "The Just" De Berkeley
James "The Just" was born in 1394 in Berkeley, Gloucestershire, England.  He died at the age of 69 in 1463 in Berkeley Castle, Berkeley, Gloucestershire, England.

 Isabel De Mowbray
Isabel was born about 1392 in Bristol, Gloucestershire, England.  She died in 1452.

 Maurice De Berkeley
Maurice was born in 1420 in Berkeley, Gloucestershire, England.

 William Mar De Berkeley
William Mar was born about 1425 in Berkeley, Gloucestershire, England.