Fulbert or Robert De Dover
Fulbert or Robert was born about 1178.  He died in 1205.

 Isabel De Briwere
Isabel was born in 1184 in Stoke, Gloucestershire, England.  She died at the age of 49 in 1233.

 Rohese De Dover
Rohese was born about 1200.  She died in Chilham Castle, Kent, England.