Baron John de Argentein
John was born about 1278 in Wymondley, Hertfordshire, England.  He died before October 20th, 1318.

 Joane de Bryan
Joane was born in Throcking, Hertfordshire, England.  She died after 1315.

 Elizabeth de Argentein
Elizabeth was born about 1312 in Melbourn, Royston, Cambridgeshire, England.

 Sir John Argentein
John was born in 1319.