Oil painting by Stepan Shchukin in 1806 of Tsar Alexander I Pavlovich Romanov (1777-1825) Russia. Alexander I standing at ease in full army uniform of the Imperial Regiment In the background is Kammenostrovsky Island Palace built for Alexander I while he was still a boy to be his future home in St. Petersburg, Russia.Painting bought in 1807 by Sir James Harris, 1st Earl of Malmesbury, UK in Russia & was visited by Alexander I in 1814. Located by unknown Private Collector from 1987-2016.
Frederick II of Prussia (1712-1786) Frederick disputed the succession of Charles VI's 23 year-old daughter, Maria Theresa, as the new Empress of the Holy Roman Empire and in particular to the Province of Silesia. Accordingly, the War of Austrian Succession began on 16 December 1740, when Frederick invaded and quickly occupied Silesia.