John de Grey II Baron Grey of Rotherfield, son of John de Grey and Margaret Ole Oddingeseles.
Born Oct 9, 1300 at England, died Sep 1, 1359 at of Rotherfield, Oxfordshire, 58 years
Married after AFT. 1313 (at most 46 years married) to:
Avice de Marmion, daughter of John de Marmion II Lord Marmion and Maude de Furnival.
Born 1302 at England
1. Robert de Grey de Marmion
Born 1345 at Ravensworth, Yorkshire, England, died 1367, 21 or 22 years
2. Maud de Grey
Born 1347 at Rotherfield, Leicestershire, England, died /91, -1257 or -1256 years