This breed, famous for its service in rescuing travelers in the Swiss mountains, owes it name to a hospice in the St. Bernard Pass. Records from the 17th century make mention of their existence at the location, but they are in fact, a much older breed, dating back as much as a thousand years. Theory suggests that at least some of their ancestors were the war dogs descended from Molossers that made their way to the region with the Roman army. The monks at the hospice where they resided, mated them with other breeds, suggested as being the Great Pyrenees and the Great Dane, to produce what is one of the largest dogs in the world. (continued below)