He was the second son of Geoffrey fitz Peter and Beatrice de Say and he succeeded his elder brother Geoffrey fitz Geoffrey as earl and inheritor of the Mandeville barony.
Essex | James Earl Jones | Prince Edward, Earl of Wessex | Louis Mountbatten, 1st Earl Mountbatten of Burma | Geoffrey Chaucer | Herbert Kitchener, 1st Earl Kitchener | University of Essex | David Essex | Earl | Frederick Roberts, 1st Earl Roberts | Earl of Derby | Earl Warren | Earl of Pembroke | Robert Harley, 1st Earl of Oxford and Earl Mortimer | Earl of Warwick | Thomas Wentworth, 1st Earl of Strafford | Edward Smith-Stanley, 14th Earl of Derby | Earl of Shrewsbury | William Pitt, 1st Earl of Chatham | Simon de Montfort, 6th Earl of Leicester | Essex County | Charles Lennox, 2nd Duke of Richmond | Geoffrey Rush | Richard Neville, 16th Earl of Warwick | Earl of Leicester | John Scott, 1st Earl of Eldon | Essex County, Massachusetts | Robert Devereux, 2nd Earl of Essex | Robert, 1st Earl of Gloucester | Hugh Grosvenor, 2nd Duke of Westminster |
He was succeeded by his brother, William FitzGeoffrey de Mandeville, 3rd Earl of Essex.