Yes, in 1997/98 under the directions of Voldemort. It was another part of Dumbledore's plan, that Snape would make sure that the students were somewhat protected from the crueler Deatheaters.
Both are: Hogwarts Professors Heads of House Extremely powerful MAGICAL Care for Harry very much (but for completely different reasons...)
Snape becomes headmaster because he is the best pawn that Voldemort has at Hogwarts school. Snape accepts the job to further his work and to afford the children what little protection he can without giving away his cover.
When he started Hogwarts.
Where else but at Hogwarts?
Snape
Gryffindor.
Severus Snape.
Dorles Umbridge and Snape
Severus Snape
professor snape
at the end of the book meaniing after the battle of Hogwarts, the headmistress would be Minerva McGonagall __________________________________________________________________ Okay but then who is the deputy??
No, not before his death in any case. Note: Nobody knows, not even himself... he has changed sides, but he did not become good.