Family: John Fitz-Gilbert Marshall / Sibyl de Salisbury (F2605)
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Father | Male
John Fitz-Gilbert Marshall
Born Between 1105 and 1126 Pembroke, Pembrokeshire, Wales 
Died Between 1164 and 1165 Buried Married Father Gilbert FitzRobert Marshall | F2614 Group Sheet Mother Unknown de Venuz | F2614 Group Sheet
Mother | Female
Sibyl de Salisbury
Born Abt 1139 Pembroke, Pembrokeshire, Wales Died UNKNOWN Buried Father Walter Fitz-Edward | F1652 Group Sheet Mother Sibyl de Chaworth | F1652 Group Sheet
Child 1 | Male
William Marshall
Born Abt 1144 Pembroke, Pembrokeshire, Wales Died 14 May 1219 Manor, Caversham, England Buried Round Chapel, Knights Temple, London, Middlesex, England Spouse Isabel de Clare | F2607 Married Aug 1189 London, Middlesex, England