John De Vipont
John was born in 1194 in England.

 Sybil De Ferrers
Sybil was born on July 25th, 1216 in Derby, Derbyshire, England.

 Robert De Vipont
Robert was born in 1228 in Broughan Castle, Westmorland, England.  He died at the age of 36 on June 7th, 1264.