Returned under arrest to Il Gioiello
· Villa Il Gioiello, Arcetri, Florence, Tuscany, Italy

Wikimedia Commons · Creative Commons Attribution-Share Alike 3.0 Unported · file Galileo returned from Siena to his Arcetri villa, which became the principal site of his lifelong house arrest and later work on the Two New Sciences. December 1 is the authorization date, not necessarily the arrival date; the Grand Duke's late-December visit confirms Galileo's presence there by the end of the month.