Coriolanus Is Based On The Life Of The Legendary Roman Leader Caius Marcius Coriolanus. The Play Opens In Rome Shortly After The Expulsion Of The Tarquin Kings. There Are Riots In Progress, After Stores Of Grain Were Withheld From Ordinary Citizens. The Rioters Are Particularly Angry At Caius Martius, A Brilliant Roman General Whom They Blame For The Grain Being Taken Away.