Before the powers could respond to the founding of the Roman Republic, Charles Albert, whose army had been trained by the exiled Polish general Albert Chrzanowski, renewed the war with Austria. He was quickly defeated by Radetzky at Novara on 23 March 1849. Charles Albert abdicated in favour of his son, Victor Emmanuel II, and Piedmontese ambitions to unite Italy or conquer Lombardy were, for the moment, brought to an end. The war ended with a treaty signed on 9 August. A popular revolt broke out in Brescia on the same day as the defeat at Novara, but was suppressed by the Austrians ten days later.