<Tr> <Td> Severus Snape </Td> <Td> Potions / Headmaster / Defence Against the Dark Arts </Td> <Td> The Potions master from Harry 's first to fifth years , head of Slytherin House from Harry 's first to sixth years and Defence Against the Dark Arts teacher in Harry Potter and the Half - Blood Prince ( Harry 's sixth year at Hogwarts ) . Snape serves as Headmaster in Harry Potter and the Deathly Hallows , having been appointed by the Minister for Magic , Pius Thicknesse ( who was controlled by Voldemort ) until he is killed by Voldemort in the final chapters of the novel . </Td> </Tr>
<Tr> <Td> Severus Snape </Td> <Td> Potions / Headmaster / Defence Against the Dark Arts </Td> <Td> The Potions master from Harry 's first to fifth years , head of Slytherin House from Harry 's first to sixth years and Defence Against the Dark Arts teacher in Harry Potter and the Half - Blood Prince ( Harry 's sixth year at Hogwarts ) . Snape serves as Headmaster in Harry Potter and the Deathly Hallows , having been appointed by the Minister for Magic , Pius Thicknesse ( who was controlled by Voldemort ) until he is killed by Voldemort in the final chapters of the novel . </Td> </Tr>
who is the headmaster of hogwarts after dumbledore died
who is the headmaster of hogwarts after dumbledore died
Severus Snape
Severus Snape