The Comedia Thebaida is a neglected work, never extensively studied as attempts to assess its literary value have been distorted from the outset by the undue weight given to the two principal charges levelled against it: its inferiority to Celestina and its "immorality". This volume transcribes two early versions of the text, and contains notes on the localization of the action, along with a critical assessment. It is a sound basis from which to assess the literary value and historical importance of the ComediaThebaida.