"The Grandeur That Was Rome" is the tenth episode of the third series of the 1960s cult British spy-fi television series The Avengers, starring Patrick Macnee and Honor Blackman.
It was first broadcast by ABC on 30 November 1963.
The episode was directed by Kim Mills[2] and written by Rex Edwards.
[3] A megalomaniac food manufacturer who is obsessed with ancient Rome, is deliberately tainting his company's grain with ergot.
Steed and Cathy are brought in to investigate.