Franks

In an alternative timeline, a group of Franks plundered the Pandorica (guarded by "the Lone Centurion") in 420 AD. (TV: The Big Bang)

The Thirteenth Doctor noted the Franks as one of the nomadic human tribes that existed on Earth in 451. (PROSE: Combat Magicks)

During the Third Crusade, King Richard I of England promised Prince Saphadin his own kingdom as well as the Frankish kingdom in return for marrying his sister, Princess Joanna. However, Joanna refused to marry the Prince, telling Richard that the Pope would never permit her marriage to "that infidel". (TV: The Crusade)