of Munich on 12 October, taking some 3000 prisoners and 19 guns and installing Maximillian Joseph back onto his throne. I Corps then co-operated in the great movement which resulted in the shutting off of Mack in the Battle of Ulm. Bernadotte's troops then captured Salzburg on 30 October. In the Battle of Austerlitz (2 December 1805) he was posted with his corps in the center between Soult and Lannes, and contributed to defeating the attempt of the right wing of the allies to outflank the French army. As a reward for his services at Austerlitz, he became the 1st Sovereign Prince of Ponte Corvo (5 June 1806), a district of Naples formerly subject to the Pope. During the 1805 campaign against Prussia, Bernadotte was reproached by Napoleon for not participating with his army corps in the battles of Jena and Auerstädt (14 October 1806). Napoleon, on the night of 13 October, thinking he had faced the whole Prussian army at Jena, sent orders to Davout, through Marshal Berthier, Davout relayed the order to Bernadotte at 0400 on 14 October with the order stating: "If the Prince of Ponte Corvo [Bernadotte] is with you, you may both march together, but the Emperor hopes that he will be in the position which had been indicated at Dornburg." This was in accordance with Bernadotte's last set of written orders from 12 October which ordered him and Davout to get across the Prussian line of retreat. In pursuance of these orders, Bernadotte, separately from Davout, left Naumburg at dawn on the morning of the 14th for Dornburg and marched toward Apolda, which he reached by 16:00. Hampered by the very poor state of the roads, and a steep defile within which Dornburg is situated and the narrow bridge which passes over the Saale, that could pass but one artillery piece at a time according to General Dupont, he could not engage in the Battle of Jena, though he effectively compelled the Prussians to retreat from both battlefields by posting his troops on the heights of Apolda. The defile was such an obstacle that Bernadotte's 3rd Infantry division, commanded by Jean-Baptiste Drouet, Comte d'Erlon, was still in the midst of crossing the bridge well after nightfall, making it unlikely that Bernadotte could have intervened at Auerstädt in any event. He later was accused of deliberately refusing to support Davout, who had unexpectedly encountered the