I think we have HPMOR confirmation of Malfoy, Potter, Greengrass, and Longbottom, and
House Potter is not “Most Ancient”.
In HPMor, we have Malfoy, Black, Greengrass and Longbottom declared explicitly as “Noble and Most Ancient”.
House Potter is not “Most Ancient”.
In HPMor, we have Malfoy, Black, Greengrass and Longbottom declared explicitly as “Noble and Most Ancient”.