Notes:

For reference, there's a lost Doctor Who serial called "The Massacre of St. Bartholomew's Eve" (a.k.a. "The Massacre") where the main villain, the Abbot of Amboise, is a Catholic extremist who looks identical to the First Doctor. The serial is about a real anti-Protestant pogrom committed during the French Wars of Religion.

Despite what this image may indicate, the Abbot never crosses paths with the Doctor during the story's events.