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. (PROSE: The Lonely Computer)

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

The Twelfth Doctor and Clara Oswald met and shared an adventure with Joan. During that encounter, the Doctor told Clara that he previously met Joan, but later in the woman's timeline. (AUDIO: The Memory of Winter).

Legacy
When the Free France Army arrived in Britain in preparation for the Normandy landings in 1944, the first thing that they did was hold a memorial service for 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)