 He escaped at the end of July, disguised himself as a peasant, and went on foot to his sister at Sorrento.The conclusions were that Tasso, after the beginning of 1575, became the victim of a mental malady, which, without amounting to actual insanity, rendered him fantastical and insupportable, a cause of anxiety to his patrons.There is no evidence whatsoever for the later romantic myth that this state of things was due to an overwhelming passion for Leonora.