This leads into a discussion of the ideal of Courtly Love. This, Clark says, is an invention of the Middle Ages – unknown to Antiquity. He offers three possible theories for its invention: Firstly, that Courtly Love as an idea was derived from Persian literature that Crusaders encountered in the Middle East. Secondly, Clark puts forward that it might have been the social position of noble women that inspired a sort of admiration that had to remain distant. Thirdly, he mentions the link between Courtly Love and the veneration of the Virgin Mary.