There were three successive heads of the Wizengamot who possessed chestnut and unicorn wands, the combination, as Garrick Ollivander noted, showing a predilection for those concerned with matters of justice and law.
Albus Dumbledore held this title for several years, until 1995; a discrediting campaign that the Ministry of Magic and the Daily Prophet carried out that year caused him to lose the position. Dumbledore was reinstated when the Ministry was forced to acknowledge Lord Voldemort's return to power, and presumably held the title until his death.
In his obituary for Dumbledore, Elphias Doge praised the wisdom the late Chief Warlock had displayed in several judgments while he had occupied that position.
- Harry Potter and the Philosopher's Stone (First appearance)
- Harry Potter and the Order of the Phoenix
- Harry Potter and the Deathly Hallows (Mentioned only)