Maspyr

The Maspyr is a designer dog of two large purebred dogs; the Mastiff and the Great Pyrenees.  The Maspyr is not as popular a hybrid as some others, most likely due to its size and dogs may vary in size, weight, and appearance due to the lack of hybrid standards.  However, the Maspyr makes for a great family protector, and owners can review the histories of the respective parent breeds for a better understanding of their Maspyr. The Mastiff is a descendant of the Molosser dogs, who were ancient protectors of flocks and homes.  

The Mastiff is a well-documented protector and dog of war throughout the world.  However, the modern-day Mastiff developed in England during the 15th Century as a protector mainly in part due to the Lyme Hall strain of Mastiffs that were bred between the 15th and 20th centuries.  The Mastiff thrived in England during this time; however, the breed faced extinction early in the 20th century during World Wars I and II due to food shortages.  Luckily breeds imported to the United States and Canada were able to sustain the breed.  The American Kennel Club recognized the Mastiff as part of the Working Group in 1885.  

The Great Pyrenees has origins as a sheepdog in the Pyrenees Mountains, where the breed developed over 5,000 years.  The Great Pyrenees was once considered a peasant's dog used for the flock, but it caught the attention of King Louis the XIV in the 17th century and was declared the Royal Dog of France.  As a popular dog among the nobility, the Pyrenees changed its role to estate protector.  The Pyrenees left Europe for Newfoundland, Canada, where the breed experienced great popularity.  The American Kennel Club first recognized the Great Pyrenees in 1933, and the breed enjoys moderate popularity today.