Captain (Coming to Dust)

From Tardis Wiki, the free Doctor Who reference

In the mid-15th century, shortly before the Turks captured Constantinople, a Christian captain led his cavalry in battle against an army of Mal'akh led by Sutekh.

Wanting him to win the battle, the Great Houses sent Ellainya to give the captain instructions on how to kill Mal'akh. Nonetheless, the captain and his cavalry were defeated by the Mal'akh. (AUDIO: Coming to Dust)