Walburga Black being forced to marry her first degree cousin the second she graduates from Hogwarts because Orion’s elder Brother married a foreigner who failed to give him a son, only three daughters.
Walburga Black giving birth to her son, Sirius, only a year later.
Walburga Black realizing early on that her son is way too curious and stubborn for his own good and needs to be disciplined and raised harshly (just like she had to be raised too)
Walburga Black acting all mad but not suprised that her son was not a Slytherin.
Walburga Black trying, like really trying to be a better mother to Regulus, because he is such a mommy’s boy, but all she sees when looking at him is her late husband’s face she hated so much.
Walburga Black “accidentally” leaving 2 of the eldest and most expensive Black heirloms in Sirius’ room the night he is about to run away, because a Mother always knows and because he is still a Black and no Black should be depending on others for money.
Walburga Black sitting at Regulus’ (empty) Grave alone the night of the funeral, pretending to not seeing Sirius hiding and waiting for her to leave.
Walburga Black hoping her son would come and comfort her if she waits long enough but finally standing up and going away so that Sirius can say goodbye to his brother too.
Walburga Black never officially disowning her son, although publically distancing from him.
Walburga Black not changing anything of Sirius’ Room, even his muggle posters.
Walburga Black being the only one who knows Sirius is innocent, because she birthed him and she knows him.
Walburga Black getting ready to defend Sirius on trial but finding out he was sentenced without one.
Walburga Black being there in the crowd when they publically transport Sirius to Azkaban.
Walburga Black dying with the knowledge that she sacrificed both her sons for an already crumbling family name and that it was useless after all and that she has indeed become just like her mother.