Krakow (also spelled Cracow) was a city in Poland.
In 705, the Doctor defeated a dragon there, at a place called Wawel. (PROSE: Only Human [+]Gareth Roberts, BBC New Series Adventures (BBC Books, 2005).)
During the Nazi invasion of Poland that started World War II in September 1939, Brigadier Kraus gained a reputation as the Butcher of Krakow. (PROSE: Illegal Alien [+]Mike Tucker and Robert Perry, adapted from Illegal Alien, BBC Past Doctor Adventures (BBC Books, 1997).)
Behind the scenes
The Polish spelling of the city's name is "Kraków".