Gerard de Furnival
Gerard de was born about 1156 in Yorkshire, England.  He died after 1218 in Sheffield, Yorkshire, England.

 Maud de Luvetot , Heir of Sheffield & Worksop
Maud de was born about 1178 in Sheffield, Yorkshire, England.  She died in 1250 in Worksop, Nottinghamshire, England.

 Thomas de Furnival , of Sheffield & Worsop, Sir
Thomas de was born about 1198 in Hallamshire, Sheffield, Yorkshire, England.  He died after April 13th, 1238 in Slain by Saracens in the Holy Land.

 Gerard de Furnival , Lord of Caldecott
Gerard de was born in 1202 in Lyddington Manor, Caldecott, Rutland, England.  He died after 1265.

 Sarah Furnival
Sarah was born before 1219 in Sheffield, Yorkshire, England.