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Piertotum Locomotor

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"And all along the corridor the statues and suits of armour jumped down from their plinths, and from the echoing crashes from the floors above and below, Harry knew that their fellows throughout the castle had done the same... Cheering and yelling, the horde of moving statues stampeded past Harry; some of them smaller, others larger than life. There were animals too, and the clanking suits of armour brandished swords and spiked balls on chains."

Piertotum Locomotor is the incantation of a transfiguration charm used to bring life to those artefacts that had, previously, been inanimate and unmoving.[1] The target's movements can be controlled by the caster of the spell.[5]

Known uses

Hogwarts suits of armour and statues

The statues and suits of armour

Minerva McGonagall used this spell to animate the Hogwarts suits of armour and statues to fight in the final battle of the Second Wizarding War, the Battle of Hogwarts on 1 May, 1998.

The suits of armour were used to aid the defenders of Hogwarts against Lord Voldemort, his Death Eaters, and the various Dark creatures that had sided with him.

Known practitioners

"I've always wanted to use that spell."
—Professor McGonagall[src]


This incantation may derive from:

  • Latin "pie", meaning "dutifully" or "affectionately"[10]
  • Latin "totum", which means "everything", "the whole" or "they all"[11]
  • Latin "loco", meaning "position" or "place"[12]
  • Latin "moto", meaning "moves" or "moving"[13]

The whole incantation could, therefore, translate to "The whole position dutifully moves," or any other combination of the translations. A less rigid translation: 'I move thee forth, all dutiful [soldiers]'. 

Behind the scenes

  • In the eighth video game, when Professor McGonagall performs this spell and gives her orders, her voice makes an echo throughout the night, most likely for dramatic effect.[14]
  • In LEGO Harry Potter: Years 5-7, Professor McGonagall does not bring the statues and suits of armour to life onscreen.[15]
  • In the eighth film, when Professor McGonagall casted this spell during the Battle of Hogwarts, she says eagerly to Molly Weasley that she has "always wanted to use that spell".


Notes and references

  1. 1.0 1.1 1.2 1.3 1.4 Harry Potter and the Deathly Hallows - Chapter 30 (The Sacking of Severus Snape)
  2. 2.0 2.1 2.2 Harry Potter and the Deathly Hallows: Part 2
  3. 3.0 3.1 Harry Potter and the Goblet of Fire - Chapter 5 (Weasleys' Wizard Wheezes)
  4. Cite error: Invalid <ref> tag; no text was provided for refs named .5B.5BHarry_Potter_and_the_Chamber_of_Secrets_.28video_game.5D.5D
  5. 5.0 5.1 Harry Potter and the Deathly Hallows - Chapter 31 (The Battle of Hogwarts)
  6. Harry Potter and the Order of the Phoenix - Chapter 36 (The Only One He Ever Feared)
  7. Harry Potter and the Goblet of Fire (film)
  8. Harry Potter and the Philosopher's Stone (video game)
  9. Harry Potter and the Chamber of Secrets (video game)
  10. See this
  11. See this
  12. See this
  13. See this
  14. Harry Potter and the Deathly Hallows: Part 2 (video game)
  15. LEGO Harry Potter: Years 5-7

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