Freedonia (nation)

Freedonia was a fictional nation primarily associated with Martha Jones. In 1599, the Tenth Doctor told William Shakespeare that Martha Jones was a citizen of the nation of "Freedonia" to explain away her differences from the women of Shakespeare's acquaintance. (TV: The Shakespeare Code) Later, while visiting the Lake District in September 1909, Martha again claimed to be from Freedonia. (PROSE: Sting of the Zygons)

Behind the scenes
"Freedonia" is a generic name for a plausible-sounding but fictional country, popularised by the film. Its use in The Shakespeare Code was intended as a reference to this film.