Guy IV Baron de Brienne , of Walwyn's, Sir
Guy IV Baron de was born about 1202 in Walwyn's Castle, Haverfordwest, Pembrokeshire, Wales.  He died on June 1st, 1252 in Walwyn's Castle, Haverfordwest, Pembrokeshire, Wales.

 Jane de la Pole
Jane de was born about 1202 in England.  Jane de is no longer alive.

 Guy I de Briene , of Laugharne, Sir
Guy I de was born about 1225 in Laugharne, Carmarthenshire, Wales.  He died in 1307.