 After Frederick's flight to the Netherlands, Ferdinand ordered a massive effort to bring about re-conversion to Catholicism in Bohemia and Austria, causing Protestantism there to nearly disappear in the following decades, and reducing the Diet's power.In 1625, despite the subsidies received from Spain and the Pope, Ferdinand was in a bad financial situation.In order to muster an imperial army to continue the war, he applied to Albrecht von Wallenstein, one of the richest men in Bohemia