On March 14

On this day in ...
... 1647 (365 years ago today), in what is now Germany, a truce known as the Treaty of Ulm was signed in that city by representatives of France, Sweden, and Bavaria, after the former 2 powers invaded the last during the Thirty Years War. The Elector of Bavaria, Maximilian I (coat of arms at left), would break the truce by autumn. (image credit)

(Prior March 14 posts are here, here, here, here, and here.)