Treaty of Bärwalde [SEP] point in time
Treaty of Bärwalde
The Treaty of Bärwalde (; ; ) of 23 January 1631 was a treaty concluding an alliance between the Swedish Empire and the Kingdom of France  during the Thirty Years' War, shortly after Sweden had invaded Northern Germany then occupied by Ferdinand II, Holy Roman Emperor's forces. The treaty obliged Sweden to maintain an army of 36,000 troops, and France to fund the Swedish army with an annually 400,000 Reichsthalers.
Background.
Sweden, which had already intervened in the 1628 Siege of Stralsund, started
by the time the treaty was concluded.
The treaty was signed by ambassador Hercule de Charnacé, "unofficial agent" of Cardinal Richelieu, for France, and, on behalf of Gustavus Adolphus, Gustav Horn and Johan Banér for Sweden.
While the French subsidies to Sweden agreed on in Bärwalde made up for no more than one fiftieth of the French state budget, they amounted to one quarter of the Swedish one. 
Subsequent Franco-Swedish treaties during the Thirty Years' War.
The treaty served to fund