Reynold D'+ Argentein
Reynold D'+ was born about 1231.

 Laura De+ Vere
Laura De+ was born about 1238 in Hedingham Castle, Essex, England.

 John D'+ Argentein
John D'+ was born about 1268 in Great Wymondley, Hitchin, Herefordshire, England.  He died before October 20th, 1318 in Melbourn, Royston, Cambridgeshire, England.