Albus and Aberforth Dumbledore were Half-blood brothers who were both members of the Order of the Phoenix.
- Albus Dumbledore, Half-blood wizard who attended Hogwarts School of Witchcraft and Wizardry, later became Headmaster of Hogwarts, brother of Aberforth Dumbledore, founder and member of the Order of the Phoenix
- Aberforth Dumbledore, Half-blood wizard, owner of the Hog's Head Inn, brother of Albus Dumbledore, member of the Order of the Phoenix