Joan of Arc

Joan of Arc, also known as Saint Joan, was a French military leader.

Biography
Samuel Sands said he had been told that the voices St. Joan heard always came from the side. (PROSE: The Sleep of Reason) The Fifth Doctor speculated that the voices Joan heard were sent by the Daleks. (AUDIO: Renaissance of the Daleks)

The Tenth Doctor claimed to have had a "confidence-building lunch with Joan of Arc, which went too well". They had crepes. (COMIC: Four Doctors)

Joan was one of the individuals Momus pulled out of time, an act she suggested was a trick of the Devil's. Noel Coward told her the Devil had a better sense of humour. (WC: The Lonely Computer)

The Fifth Doctor noted that Joan's death by burning was a part of the Web of Time. (AUDIO: Cobwebs)

Legacy
Following the Normandy landings and the liberation of France from Nazi Germany in 1944, the first thing that the Free French Army did was create a memorial to Joan of Arc. (AUDIO: State of Emergency)

Upon visiting Venus in the far future, Henry Gordon Jago was ordered to entertain the Grand Empress Vulpina. To that end, he told her the following joke: "What's the difference between Joan of Arc and an old, oak table?" The punchline was "One's Maid of Orleans, the other's made of wood." Vulpina did not understand the joke. (AUDIO: Voyage to Venus)

Behind the scenes
According to The Brilliant Book 2012, a source not to be used for in-universe pages, in an alternate universe where all of history happened at once, Joan hosted the daytime chat series  with Emily Brontë. (REF: The Brilliant Book 2012)