13 August 1923 saw Escher’s first solo exhibition open at the ‘Circolo Artistico’ in Siena. A milestone, but he paid very little attention to it. He was in love with Jetta Umiker and all his thoughts and actions were focused on her.
After returning to Switzerland with her parents at the end of June, they wrote each other long love letters. In one of them, he adulated the Tuscan city, for which his infatuation was almost as large as it was for Jetta.
‘I love this Siena so much. A naive person would feel as a new-born here, free of all sins. If the happiness of man depends on the place he lives, I would stay in Siena forever.’