Gilbert Fitz Robert MARSHAL
Gilbert Fitz Robert was born in 1075 in Somerset, England.  He died before 1130.

 UNKNOWN DE VENUZ
UNKNOWN was born in 1105 in Pembroke, Wales.  UNKNOWN is no longer alive.

 John MARSHAL
John was born about 1126 in Pembroke, Wales.¹   He died in 1165.¹