Instruction:
Who are some students at Hogwarts in Slytherin house that were in the same year as Harry Potter?

Response:
Hogwarts is the fictitious school in the Harry Potter book series. The books mentions several students in Harry Potter's year from the Slytherin house, such as Draco Malfoy, Vincent Crabbe, Gregory Goyle, Pansy Parkinson, and Blaise Zabini.