Alexander the Great

Alexander the Great (356-323 BC) was the King of Macedon from 336 BC to 323 BC and one of the most successful Greek military commanders in history.

In May 323 BC, the First Doctor and his companions Susan Foreman, Ian Chesterton and Barbara Wright met Alexander in Babylon, ultimately being present at his death the following month. (BFA: Farewell, Great Macedon)

Immediately after his third regeneration, the Fourth Doctor recalled his encounter with Alexander the Great. Temporary memory loss caused him to refer to Brigadier Lethbridge-Stewart as Alexander. (DW: Robot)


 * It is possible that the Doctor met Alexander the Great in the same adventure that he met Pyrrho, as the two were contemporaries.

Behind the scenes
In 1964, a six-episode story entitled Farewell Great Macedon was written for the First Doctor. It was never produced, though the script would be published in book form in 2009. It is possible that the meeting referenced in Robot could be this unproduced adventure.