Essex | Peter Pan | Peter Gabriel | Peter Jackson | Peter | Saint Peter | Peter Paul Rubens | Peter Sellers | Peter the Great | Blue Peter | James Earl Jones | Prince Edward, Earl of Wessex | Peter Frampton | Louis Mountbatten, 1st Earl Mountbatten of Burma | Horatio Nelson, 1st Viscount Nelson | Geoffrey Chaucer | Peter Greenaway | Herbert Kitchener, 1st Earl Kitchener | University of Essex | Peter Brook | Peter Lorre | David Essex | Charles Cornwallis, 1st Marquess Cornwallis | Peter Ustinov | Earl | 1st United States Congress | St. Peter's Basilica | Frederick Roberts, 1st Earl Roberts | Bernard Montgomery, 1st Viscount Montgomery of Alamein | Earl of Derby |
Geoffrey founded two hospitals in Berkhamsted, one dedicated to St John the Baptist and one to St John the Evangelist; the latter is still commemorated in the town with the name St John's Well Lane.
Essex was probably named after her maternal grandfather the 1st Earl of Essex.
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.