"Protego Maxima. Fianto Duri. Repello Inimicum."
Filius Flitwick conjures up magical defences prior to the Battle of Hogwarts[src]

Protego Maxima is a stronger version of the Shield Charm that, when cast in combination with Fianto Duri and Repello Inimicum, conjures up an almost impregnable magical protection barrier.


People who are out of the shield can't see and hear the wizards or witches that are protected. While spells cast at it (if not of enough power to break it) create large, resonating explosions. This spell is the core of the shield summoned around Hogwarts; it is the shield itself that is seen descending over the castle. It should be noted however that on occasion protective enchantments can be breached with a shield penetration spell.

Known uses


Snatchers being disintegrated by the power of this spell combined with other protections

  • This spell was cast by Molly Weasley and Horace Slughorn to protect the boundaries of Hogwarts Castle from the Death Eater forces in the late hours of 1 May, 1998, prior to the Battle of Hogwarts that started at midnight the next day. The Death Eaters, on Voldemort's command, started bombarding the magical protection with spells, and it was ultimately brought down by a spell cast by Voldemort.[1]
  • This may have been the spell, or may a stronger variation of Protego, combined with other protections, used by MACUSA that was used to prevent Gellert Grindelwald from moving from his chair in MACUSA as when a fly passed by the shield's boundaries, it was disintegrated until only its wings remained in the air, clearly outside the shield's boundaries.

See also


  • The incantation is derived from the Latin "protego", meaning "I defend", or "I protect", and "maxima", nominative feminine singular of "maximus", meaning "greatest", or "highest limit"; altogether the incantation means "I protect to the highest limit".

Behind the scenes


Notes and references

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