An Olde English Bulldogge is not a purebred dog.    The best way to determine the temperament of a mixed breed is to look up all breeds in the cross and understand that you can get any combination of the characteristics found in either breed. The Olde English Bulldogge is the result of crossing the English Bulldog with the American Pit Bull Terrier, the Bullmastiff and the American Bulldog. The attempt to have an English Bulldog without the aggression was the original goal.