GERVAISE, (or GERVASE), of Tilbury, a famous English writer of the 13th century; thus named from his being born at Tilbury on the Thames. He was nephew to Henry II. king of England; and was in great credit with Otho IV. emperor of Germany, to whom he dedicated a Description of the world, and a Chronicle. He also composed a history of England, that of the Holy Land, and other works.