Aberforth Dumbledore is a fictional character from the Harry Potter Universe
Aberforth Dubledore is the middle child of Percival and Kendra Dumbledore, his elder brother being Albus Dumbledore and younger sister Ariana Dumbledore. He is the owner and barman of the Hog's Head pub in Hogsmeade and asists in the final battle against Voldemort at Hogwarts. Aberforth also keeps the second mirror, the one that Sirius used to own. It allows him to talk face-to-face with the person with the first mirror.