William , 3rd Earl Of Derby De Ferrers & Sybil De Braose 
William , 3rd Earl Of Derby and Sybil were married in a religious ceremony.1 They had a son and two daughters, named William , 4th Earl Of Derby, Agnes and Millicent.
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Personal Details
William , 3rd Earl Of Derby De Ferrers
William , 3rd Earl Of Derby was born in 1130 in Derbyshire,ENGLAND.1 He died at the age of 60 on October 21st, 1190 in Siege Of Acre,PALESTINE.1
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Children
William , 4th Earl Of Derby De Ferrers
William , 4th Earl Of Derby was born about 1162 in Derbyshire,ENGLAND.1 He died on September 22nd, 1247.1
Millicent De Ferrers
Millicent was born in 1170 in Oakham,Rutlandshire,ENGLAND. She died before May 31st, 1252.