BoolQ / are st bernards and bernese mountain dogs related

The breed is strikingly similar to the English Mastiff, with which it shares a common ancestor known as the Alpine Mastiff. The modern St. Bernard breed is radically different than the original dogs kept at the St. Bernard hospice, most notably by being much larger in size and build. Since the late 1800s, the St. Bernard breed has been ever refined and improved using many different large Molosser breeds, including the Newfoundland, Great Pyrenees, Greater Swiss Mountain Dog, Bernese Mountain Dog, Great Dane, English Mastiff, and possibly the Tibetan Mastiff and Caucasian Ovcharka. Other breeds such as the Rottweiler, Boxer, and English Bulldog may have contributed to the St. Bernard's bloodline as well. It is suspected that many of these large breeds were used to redevelop each other to combat the threat of their extinction after World War II, which may explain why all of them played a part in the creation of the St. Bernard as seen today.