Robert III de Marmion
Robert III was born in 1162 in Tamworth, Staffordshire, England.

 Elizabeth De Réthel
Elizabeth was born in 1166 in Northamptonshire, England.  Elizabeth is no longer alive.

 Mabel de Marmion
Mabel was born about 1180 in Scrivelsby, Lincolnshire, England.

 Robert IV de Marmion
Robert IV was born in 1186 in Tamworth, Staffordshire, England.