Unidentified three successive Chief Warlocks of the Wizengamot

"The wand of chestnut is attracted to witches and wizards who are skilled tamers of magical beasts, those who possess great gifts in Herbology, and those who are natural fliers. However, when paired with dragon heartstring, it may find its best match among those who are overfond of luxury and material things, and less scrupulous than they should be about how they are obtained. Conversely, three successive heads of the Wizengamot have possessed chestnut and unicorn wands, for this combination shows a predilection for those concerned with all manner of justice."

- Garrick Ollivander's notes on wand woods.

These three individuals were wizards who headed the Wizengamot in successive terms in office. Prior to their education in the magical arts, they bought their wands (presumably at Ollivanders Wand Shop), and the three of them were chosen by wands of chestnut and unicorn hair, the combination, as Garrick Ollivander noted, showing interest in matters of justice and law.

Appearances

 * Pottermore