his final term (multiple times over 43 years) as Governor of colonial French Louisiana, which he helped colonize; he is succeeded by the Marquis de Vaudreuil (for the next 10 years) and returns to France. May 30 – The Dalecarlian rebellion (1743) breaks out in Sweden. June 27 (June 16 O.S.) – War of the Austrian Succession – Battle of Dettingen in Bavaria: British forces, in alliance with those of Hanover and Hesse, defeat a French army under the duc de Noailles; King George II of Great Britain (and Elector of Brunswick) leads his own troops, the last British king to do so. July–September July 3 – As a concession to Russia, Sweden's parliament ratifies the election of Adolphus Frederick of Holstein-Gottorp, a great-grandson of King Charles XI, to be heir to the throne of Sweden. Adolphus becomes king on the death of King Frederick on April 5, 1751, marking the end of the Hesse-Kassel dynasty and the start of the dynasty of the Holstein-Gottorp that will rule Sweden from 1751 to 1818 July 13 – All 276 people on board the Dutch East India Company ship Hollandia drown after the ship strikes a rock off of the Isles of Scilly in England near Cornwall. The wreckage is located in 1971. July 20 – Lord Anson captures the Philippine galleon Nuestra Señora de Covadonga and its treasure of 1,313,843 Spanish dollars at Manila along with a treasure of 2 1/2 million dollars, and proceeds back toward Mexico, then returns to Britain in 1744 July 23 – James Oglethorpe departs from Georgia to England and returns there in September. July 28 – France and the Allies of Britain conclude a treaty to provide care for each other's wounded. July 31 – At a summit in Lancaster, Pennsylvania, the British colonies of Virginia, Maryland and Pennsylvania conclude a treaty with the Six Nations, conceding that the member tribes are entitled to the territory west of the Appalachian mountains and north of the Ohio River. August 18 (August 7 Old Style) – Russia and Sweden sign the Treaty of Åbo. August 24 – The War of the Hats: The Swedish army surrendered to the Russians in Helsinki, ending the war and starting Lesser Wrath. August 27 – Henry Pelham becomes Prime Minister of Great Britain. September 11 – Russian noble Natalia Lopukhina is flogged in front of the Twelve Collegia building in Saint