John 'Marshall' FITZGILBERT
John 'Marshall' was born about 1105 in Pembroke, Pemrbokeshire, Wales.  He died in 1165 in Salisbury, Wiltshire, England.

 Sybil de SALISBURY
Sybil de was born about 1126 in Pembroke, Pembrokeshire, Wales.

 Margaret  FITZGILBERT
Margaret  was born about 1165 in Wiltshire, England.  She died after 1242.