In February 1770, Pulaski moved near Nowy Targ, and in March, helped to subdue the mutiny of Józef Bierzyński. Based in Izby, he subsequently operated in southern Lesser Poland and on May 13 his force was defeated at the Battle of Dęborzyn. Around June 9–10 in Prešov, in a conference with other Confederate leaders, he met Joseph II, Holy Roman Emperor, who complimented Pulaski on his actions. On July 3–4, Pulaski's camp was captured by Johann von Drewitz, and he was forced to retreat into Austria. Early in August he met with the French emissary, Charles François Dumouriez. He disregarded an order to take Lanckorona and instead cooperated with Michał Walewski in a raid on Kraków on the night of August 31. He then departed for Częstochowa. On September 10, along with Walewski, he used subterfuge to take control of the Jasna Góra monastery. On September 18 he met Franciszka z Krasińskich, an aristocrat from the Krasiński family and the wife of Charles of Saxony, Duke of Courland; he impressed her and she would become one of his protectors. Around September 22–24 Walewski was made the commandant of Jasna Góra, which slighted Pulaski. Nonetheless he continued as the "de facto" commander of Confederate troops stationed in and around Jasna Góra. Between September 10, 1770, and January 14, 1771, Pulaski, Walewski and Józef Zaremba commanded the Polish forces during the siege of Jasna Góra monastery. They successfully defended against Drewitz in a series of engagements, the largest one on November 11, followed by a siege from December 31 to January 14. The defense of Jasna Góra further enhanced his reputation among the Confederates and abroad. A popular Confederate song taunting Drewitz included lyrics about Pulaski and Jasna Góra. Pulaski intended to pursue Drewitz, but a growing discord between him and Zaremba prevented this from becoming a real option.