Arcturus Black III

Arcturus Black III (b. 1st October 1901) is an English Pure-Blood wizard and the current patriarch of the Noble and Most Ancient House of Black. The oldest son of Sirius Black II and Hesper Gamp, older brother of Lycoris and Regulus, Arcturus is, through his marriage to Melania Macmillan, the father of Orion and Lucretia Prewett and the grandfather of Sirius Black III and Regulus Black II.