3779314 Celebration at Amsterdam of Westphalian Peace by Flinck, Govaert (1615-60) (attr. to); (add.info.: Celebration at Amsterdam of Westphalian Peace in 1648. Peace of Westphalia refers to the two peace treaties of Osnabr羹ck and M羹nster, signed on May 15 and October 24, 1648, that ended the Thirty Years\' War in the Holy Roman Empire Weltgeschichte by Pfluck-Harttung, Neuzeit 1500 - 1650, page 512); Lebrecht History.