Frederick Christian (German: Friedrich Christian; 5 September 1722 – 17 December 1763) was the Prince-Elector of Saxony for fewer than three months in 1763. He was a member of the House of Wettin. He was the third but eldest surviving son of Frederick Augustus II, Prince-Elector of Saxony and King of Poland, by his wife, Maria Josepha of Austria
Frederick Augustus II (German: Friedrich August II.; 18 May 1797 in Dresden – 9 August 1854 in Brennbüchel, Karrösten, Tyrol) was King of Saxony and a member of the House of Wettin. He was the eldest son of Maximilian, Prince of Saxony – younger son of the Elector Frederick Christian of Saxony – by his first wife, Caroline of Bourbon ...
The first care of the new elector was to come to terms with John Frederick, and to strengthen his own hold upon the electoral position. This object was secured by a treaty made at Naumburg in February 1554, when, in return for the grant of Altenburg and other lands, John Frederick recognized Augustus as elector of Saxony.
Frederick Augustus' reign began on 13 June 1900, when his father died. His reign came to an end on 11 November 1918 , shortly before the German monarchy was abolished on 28 November 1918. Frederick was forced to abdicate his throne at the end of World War I , when the former Grand Duchy of the German Empire joined the post-war German Republic. 
Frederick William III (German: Friedrich Wilhelm III.; 3 August 1770 – 7 June 1840) was King of Prussia from 16 November 1797 until his death in 1840. He was concurrently Elector of Brandenburg in the Holy Roman Empire until 6 August 1806, when the Empire was dissolved.
John Frederick II of Saxony (8 January 1529 – 19 May 1595), was Duke of Saxony (1554–1566). ... Augustus; and proclamations were issued asking for assistance ...
Adolf Frederick, or Adolph Frederick (Swedish: Adolf Fredrik, German: Adolf Friedrich; 14 May 1710 – 12 February 1771) was King of Sweden from 1751 until his death. He was the son of Christian August of Holstein-Gottorp, Prince of Eutin , and Albertina Frederica of Baden-Durlach .