Robert I de Tregoz
Robert I was born about 1145 in Salisbury, Wiltshire, England.  He died in 1215 in Ewyas Harold, Herefordshire, England.

 Sybil de Ewyas
Sybil was born about 1165.  She died in 1236.

 Robert De Tregoz
Robert was born in 1190.  He died at the age of 75 on August 4th, 1265.

 Sybilla De Tregoz
Sybilla was born in 1195 in Eywas, Herefordshire, England.  She died at the age of 41 in 1236.