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Regulus Arcturus Black(1961 â 1979) was a pure-blood wizard, born to Orion and Walburga Black, and the younger brother of Sirius Black. He was a member of the House of Black, an old wizarding family. He attended Hogwarts School of Witchcraft and Wizardry in 1972 and was sorted into the Slytherin house.
Regulus was born in 1961 into the wealthy, pure-blooded Black family, as the youngest son of Orion and Walburga Black and younger brother of Sirius Black. It is assumed that he was named after his great-uncle, also named Regulus, and his paternal grandfather, Arcturus.