Gilbert (The Surety) De Clare & Isobel Marshall 
The Surety and Isobel were married on October 9th, 1217 in Penrose, Brittany, France.1 They had three sons and seven daughters, named Richard, William, Gilbert, Joan, Maud, Susan, Amica, Adeliza , Agnes and Isabel.
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Personal Details
Gilbert (The Surety) De Clare
Gilbert, known as The Surety, was born in 1180 in Hertford, Hertfordshire, England.1 He died at the age of 50 on October 25th, 1230 in Penrose, Brittany, France. He was buried in Tewkesbury Abbey, Gloucester, England.2 3
Isobel Marshall
Isobel was born on October 9th, 1200 in Tewkesbury, Gloucestershire, England.1 She died at the age of 39 on January 17th, 1240 in Berkhamstead, Hertfordshire, England.1
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Children
Birth Notes
B:
P: Monmouthshire, Wales
http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=arciek&id=I15761&style=TABLEDeath Notes
D: 1251/1252
Earl of Gloucester Richard De Clare
Richard was born on August 4th, 1222 in Gloucestershire, England.5
William De Clare
William was born on May 18th, 1228 in Gloucestershire, England.2 He died at the age of 30 in 1258 in Retherford, England.6
Isabel of Gloucester De Clare
Isabel was born on November 8th, 1230 in Gloucester, Kent, England.4 She died at the age of 21 in 1251.7
1 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=arciek&id=I15761&style=TABLE
2 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=GET&db=arciek&id=I10504
3 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=madchia&id=I2410&style=TABLE
4 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=GET&db=madchia&id=I2304
5 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=jdp-fam&id=I4658&style=TABLE
6 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=PED&db=schluck&id=I9499&style=TABLE
7 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=PED&db=bevangenealogy&id=I20018&style=TABLE
2 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=GET&db=arciek&id=I10504
3 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=madchia&id=I2410&style=TABLE
4 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=GET&db=madchia&id=I2304
5 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=jdp-fam&id=I4658&style=TABLE
6 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=PED&db=schluck&id=I9499&style=TABLE
7 http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=PED&db=bevangenealogy&id=I20018&style=TABLE