Breed Standard Height: for females is 60–65 centimetres (24–26 inches) and for males is 60–68 centimetres (24–27 inches), measured at the withers. Weight: from 40–45 kilograms (88–99 pounds). Weight: from 40–45 kilograms (88–99 pounds). The length of the body is just slightly longer than the height. Martinez crossed it with the Great Dane, Boxer, Spanish Mastiff, Old English Bulldog, Bull Terrier, Pyrenean Mastiff, English Pointer, Irish Wolfhound and Dogue de Bordeaux. Nores Martinez continued to develop the breed via selective breeding to introduce the desired traits.