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Sirius is the last heir of the House of Black, a once notable pure-blood Wizarding family. His parents, Orion and Walburga Black , were both Blacks by birth and second cousins. Sirius had a younger brother, Regulus, and three older cousins: Bellatrix Lestrange, Andromeda Tonks (his favourite cousin and mother of Nymphadora Tonks), and Narcissa Malfoy (mother of Draco Malfoy). "Sirius" is a traditional Black family name, recurring in at least three generations and following a family tradition of naming children after stars and constellations. Sirius's early life proved unhappy; he had come to hate most of his relatives, in particular his mother. He rejected his family's pure-blood elitism and reverence for the Dark Arts. Whereas all other members of the Black family were sorted into Slytherin, Sirius was placed in Gryffindor.
