Minerva McGonagall was supposed to be headmistress in seventh year, but since Voldemort controlled the Ministry at that point, he wanted the school in his hands. He had thought then that Snape was loyal to him, and since Snape had worked there so long and killed Dumbledore, Voldemort put Snape in charge.
Severus Snape was headmaster in book seven: Harry Potter and the Deathly Hallows.
Severus Snape, appointed by Voldemort (or his puppet Minister Thickness).
Severus Snape was appointed headmaster after Lord Voldemort (indirectly) took over the Ministry of Magic.
Severus Snape. In the end (after Voldemort's defeat): Professor McGonagall.
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??
Severus Snape becomes headmaster.
Answer: well obviously everyone knows that Answer: He is the headmaster in Harry Potter 7.
In what would have been Harry Potter's seventh year the headmaster was Severus Snape. It is unknown who became headmaster after that. Possibly Minerva McGongall for a few years before she retired.
Severus Snape
Albus Percival Wulfric Brian Dumbledore is the headmaster up until book seven when Severus Snape replaces him. After Snape it is unknown for sure who became headmaster but J.K. Rowling confirmed that McGonagall wasn't Headmistress.
The fictional character Severus Snape is in the Harry Potter book series. He is portrayed as an evil and malicious teacher, and becomes a headmaster in the final book of the series.
severus snape takes over as headmaster once harry leaves school to search for the horcruxes.