Henry de FROWICK
Henry de was born about 1230 in St. Osyth, Essex, England.  He died before May 19th, 1286.

 Isabel de DURHAM
Isabel de was born in London, Middlesex, England.  She died in 1300.

 Reginald de FROWICK
Reginald de was born about 1260 in London, Middlesex, England.