the Battle of Marengo, 1800. Having served as an officer in the 9th Dragoon Regiment, he was promoted to Colonel in 1799. Sébastiani joined Lucien Bonaparte's entourage, and endorsed Napoleon's political actions, taking an active part in the 18 Brumaire coup (9 November 1799). In 1802, the Consulate sent him on his first diplomatic assignments in the Ottoman Empire, Ottoman Egypt, and other parts of The Levant. Among his first actions were the settlement of a conflict between Sweden and the Barbary State of Tripoli, as well as obtaining the latter's agreement to recognize the Italian Republic. Mission to Egypt and 1805 Campaign Sébastiani negotiated with the British military commanders in the aftermath of the French invasion of Egypt (1798), asking them to abide by the newly signed Treaty of Amiens and withdraw from Alexandria; following this he met with Ottoman officials in Cairo, unsuccessfully offering to mediate between them and rebellious beys (see Muhammad Ali's seizure of power). In late 1802, he traveled to Akka, and negotiated a trade agreement with the local pasha. During this period, Sébastiani theorized that, despite Egyptian Campaign's failure, the French could yet again establish their control over the region. He publicized this view in a report, published by Le Moniteur Universel on 30 January 1803, posing a threat for both British and Russian interests; this probably contributed to deescalating relations between the latter two over the prolonged British presence in Malta, with Henry Addington's Cabinet indicating that British troops would remain as long as France held designs to invade Egypt. Returning to France, he was put in charge of the littoral from the mouth of the Vilaine (in Morbihan) to Brest, before, in 1804, being despatched on a short mission to the Holy Roman Emperor in Vienna. Promoted Brigadier-General in 1803, he commanded Grande Armée troops during the Battle of Ulm. After leading a successful attack on Günzburg, Sébastiani followed the Austrians into Moravia (1805), having been promoted Général de division after the Battle of Austerlitz in 1805, where he was wounded. Embassy to Selim III Appointed French Ambassador to The Porte on 12 April 1806, and gaining his post on 10 August, he attempted to convince Sultan Selim III to exclude the Royal Navy from access through the Dardanelles. According to a biographical essay published by the Revue des Deux Mondes in 1833, Sébastiani faced almost universal hostility from the anti-French diplomatic