Robert de Ferrers, 2nd Earl of Derby, was born on an unknown date to Robert de Ferrers, 1st Earl of Derby (c1062-1139) and Hawise de Vitré (c1069-) and died 1162 of unspecified causes. He married Margaret Peverel (c1144-) .
|Offspring of Robert de Ferrers, 2nd Earl of Derby and Margaret Peverel (c1144-)|
|William de Ferrers, 3rd Earl of Derby (-1190)||21 October 1190||Sibylla de Braose (-1227)|
|Walkelin de Ferrers (c1135-1190)|
|Maud de Ferrers (c1142-aft1175)||1142||1175||Bertram III de Verdun (c1134-1192)|