What was the last Napoleonic stronghold to surrender in 1815? I have been reading about Gaeta, which was held on behalf of Murat by General Begani. Although Murat had quit Naples on 20 May, the fort only surrendered to the Allies on 8 August 1815. That's quit elate, but was it the last Napoleonic fort to surrender? Probably there were others beyond Europe or in France?