@Purplelibraryguy
Actually, through the history of human kind it has been pretty common to have genocides as saints as the church itself used to be pretty goddamn sinful in the first place.
But, you know what? They always tell us about how vengeance is a bad thing in fiction and stuff but this woman's reasoning for doing all that isn't necessarilly wrong... If anything, is what had to be done.
First, to protect her son she destroyed their political power.
Then, just in case
she made sure no one would take vengeance on her