ENAugustyn Rotundus Mieleski was an author of unpublished and disappeared History of Lithuania. But at this article his view on history of the GDL is restored from Conversation of Pole and Lithuanian and Epitome Principum Lituaniae. At Conversation Rotundus showed Lithuania's Catholic Christ as a central moment at history of Lithuania. Another main theme of Rotundus' historical discourse is an early (and legendary) history of the Grand Duchy of Lithuania. It emphasized superiority the GDL over Poland. At Epitome for the first time the author had created dynastic jagiellonian history of the GDL.