Interactive tree of Isabella de Ferrers

Who's Your Daddy?
Wikigenealogy

Isabella de Ferrers 1226–1260

William de Ferrers III 5th Earl of Derby, Constable of Bolsover Castle 1193–1254

Sybil Marshall Countess of Derby 1209–1245

Sir William de Ferrers 4th Earl of Derby, Constable of Bolsover Castle 1162–1247

Agnes de Meschines 1174–1247

William de Ferrers 3rd Earl of Derby, Constable of Bolsover Castle 1136–1189

Sybil de Braose 1157–1228

Sir Robert de Ferrers 2nd Earl of Derby 1090–1160

Margaret Peverel Countess of Derby 1114–1154