"Baudolino" was published in 2000. Baudolino is a much-travelled polyglot Piedmontese scholar who saves the Byzantine historian Niketas Choniates during the sack of Constantinople in the Fourth Crusade. Claiming to be an accomplished liar, he confides his history, from his childhood as a peasant lad endowed with a vivid imagination, through his role as adopted son of Emperor Frederick Barbarossa, to his mission to visit the mythical realm of Prester John. Throughout his retelling, Baudolino brags of his ability to swindle and tell tall tales, leaving the historian (and the reader) unsure of just how much of his story was a lie.