The Treaty of Fontainebleau was signed on 30 May 1631 during the Thirty Years' War, at the Palace of Fontainebleau. It was a pact of mutual assistance between Maximilian I, Elector of Bavaria, and Fra

The War of the Mantuan Succession, 1628 to 1631, was caused by the death in December 1627 of Vincenzo II, last Gonzaga ruler of Mantua and Montferrat. This led to a proxy war between the French-backed