In 1628, the Dutch captured the Spanish treasure fleet, which they used to finance the 1629 capture of 's-Hertogenbosch. The powerful Amsterdam mercantile lobby saw this as an opportunity to end the war; negotiations ended without result in 1633, but strengthened the peace party. The Peace of Prague led to rumours of a proposed Austro-Spanish offensive in the Netherlands, leading Louis XIII of France and Richelieu to decide on direct intervention. In early 1635, they signed an agreement with Bernard of Saxe-Weimar to provide 16,000 troops for a campaign in Alsace and the Rhineland, an anti-Spain alliance with the Dutch, and the Treaty of Compiègne with Sweden.