Walter de Sully
Walter was born in Afan Cmt, Glamorganshire, England.  He died in 1285.

 Mabel de Somery
Mabel was born in Dudley, Staffordshire, England.  She died in 1312.

 Sibil de Sully
Sibil was born about 1254.

 Sir Raymond de Sully
Raymond was born about 1271 in Gower, Glamorganshire, Wales.  He died in 1317.