William Marshall & Isabel Fitzgilbert De Clare 
William and Isabel Fitzgilbert were married in a religious ceremony in August 1189 in London, Middlesex, England.1 They had five sons and six daughters, named Gilbert, William, Richard, Anselm, Walter, Margaret, Maud Matilda, Eve, Joane, Isabel and Sibyl.
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Personal Details
William Marshall
William was born about 1146 in of, of Pembroke, Pembrokeshire, Wales.1 He died on May 14th, 1219 in Caversham Manor, England, England.2
Isabel Fitzgilbert De Clare
Isabel Fitzgilbert was born in 1173 in Pembroke, Pembrokeshire, Wales.1 She died at the age of 47 in 1220 in Pembroke, Pembrokeshire, Wales.2
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Children
Maud Matilda Marshall
Maud Matilda was born in 1192 in of, Pembroke, Pembrokeshire, Wales.1 She died at the age of 56 on March 27th, 1248.1
Eve Marshall
Eve was born about 1194 in Of, Pembroke, Pembrokeshire, Wales.2 She died on May 14th, 1219 in Caversham bur. London.3
Gilbert Marshall
Gilbert was born about 1196 in Of, Pembroke, Pembrokeshire, Wales.2 He died on June 27th, 1241 in Hertford, Hertfordshire, England.2
William Marshall
William was born in May 1198 in Of, Pembroke, Pembrokeshire, Wales.2 He died at the age of 23 on April 11th, 1222 in Sp.2
Richard Marshall
Richard was born about 1200 in Of, Pembroke, Pembrokeshire, Wales.2 He died on April 16th, 1234 in Kilkenny, Castle, Kildare, Ireland.2
Joane Marshall
Joane was born about 1202 in Of, Pembroke, Pembrokeshire, Wales.2 She died about 1234.2
Isabel Marshall
Isabel was born about 1203 in of, Pembrokeshire, Wales.1 She died in Berkhamstead, Hertfordshire, England.1
Anselm Marshall
Anselm was born about 1204 in Of, Pembroke, Pembrokeshire, Wales.2 He died on December 22nd, 1245 in Chepstow.2
Sibyl Marshall
Sibyl was born about 1204 in of Pembroke, Pembrokeshire, Wales.1 She died on April 27th, 1245.2
Walter Marshall
Walter was born about 1206 in Of, Pembroke, Pembrokeshire, Wales.2 He died on November 24th, 1245 in Goodrich Castle, London, Middlesex, England.2