Explanation: the Hapsburgs were a powerful historical dynasty, mostly known nowadays for serving as a warning about the dangers of inbreeding. They became known for their deformities, chiefly the Hapsburg jaw.

Pugs are a popular breed of dog that have been deliberately bred to have severe facial deformities. They are usually considered cute despite the many health complications their nonexistent jaw causes, such as difficulty with basic tasks like eating and breathing.

(Attempting to channel the style of !PugJesus@piefed.social, as is only proper for a post discussing both history and pugs!)