Hogwarts First Horcrux

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Across
  1. 3. Slytherin's house headmaster
  2. 4. Sport played on a broomstick in Harry Potter
  3. 7. House in Harry Potter which colour is red values courage
Down
  1. 1. The prisoner of ... (name of the third movie)
  2. 2. He who shall not be named
  3. 5. The name of Harry's owl
  4. 6. Magical object you are seeking to destroy in this event