|"Is this all real? Or has this been happening inside my head?"
The topic of this article is of a real-life subject that has been mentioned "in-universe" in a canon source. The Harry Potter Wiki is written from the perspective that all information presented in canon is true (e.g., Hogwarts really exists), and, as such, details contained in this article may differ from real world facts.
He had a large, white rabbit as an advisor, which may have contributed to the widespread perception that he was mad. However, it is possible that this rabbit was actually Lisette de Lapin, a French witch who escaped from prison in Animagus form after being convicted of witchcraft by Muggles.
The name "Henry" comes from the Germanic name Heimirich which meant "home ruler", composed of the elements heim "home" and ric "power, ruler". It was later commonly spelled Heinrich, with the spelling altered due to the influence of other Germanic names like Haganrich, in which the first element is hagan "enclosure".
- The Tales of Beedle the Bard (Mentioned only)