Attila the Hun

Attila the Hun was the leader of the Hunnic Empire who attacked Europe.

Biography
Attila was son of Mundzuk. He killed his brother Bleda.

While fighting against the Romans in Gaul in 451 AD, Attila was cut off from his soldiers with his horse Bittenmane. Observing the Thirteenth Doctor and Team TARDIS getting out of the TARDIS, he assumed the name of Bleda, his late brother. He took the Doctor and Yasmin Khan hostage and brought them to his camp. (PROSE: Combat Magicks)

Resurection in the City of the Saved
During the City of the Saved Civil War, Attila the Hun and his hordes battled Xephax 2.6. (PROSE: A Hundred Words from a Civil War)

Legacy
Attila's conquests caused many people to flee from his onslaught. A group of people fled to Italy and built a collection of huts on marshland, this would eventually become the city of Venice, which was viewed as "one of the most powerful cities in the world". (TV: The Vampires of Venice)

Minor references
The Eighth Doctor told a joke to Charley Pollard and C'rizz: "What's the most ruthless thing in the bakery? Attila the Bun." When they didn't laugh, the Doctor admitted that the joke would have been funnier if they had known him. (AUDIO: Memory Lane)