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The Noble House of Black was said to be one of the oldest and, as many witches and wizards would claim, one of the purest wizarding families in all of Britain. And they were proud of it. For centuries, the Black family had managed, albeit through rather questionable methods, to preserve their pure bloodline without fail. Nothing, absolutely nothing, seemed capable of bringing this family to ruin, for despite the occasional outlier, they had endured through the ages. Every wizard and witch who had ever concerned themselves with the history of magic and the old pure-blood families had come across the name Black at least once, and no one would have imagined that there could ever come a day when it would be said that the Noble House of Black was no more.
For what neither the outside witches and wizards, nor Walburga and Orion themselves, knew at the time was that neither Regulus nor Sirius were the last to bear the name Black. After all, what were the chances that both heirs of the House of Black had already become fathers by then - and by children of the very same woman?
Or
What if Sirius and Regulus Black had daughters of the same woman?
This story is focusing on the life of Regan Atria Black. Her time at Hogwarts, her live life and her life as the legacy of the probably biggest Pureblood family.