Robert de Tattershall
Robert was born in 1195 in Tattershall, Lincolnshire, England .  He died at the age of 54 on July 16th, 1249.

 Mabel d'Aubigny
She died about 1240.

 Robert III de Tattershall
Robert III was born in 1222.  He died at the age of 51 on July 22nd, 1273.