Background
He was a member of the old Bohemian princely family of Lobkowicz, and was the fourth son of Philip Hyacinth Joseph, 4th Prince of Lobkowicz and Duke of Sagan (1680–1737).
He was a member of the old Bohemian princely family of Lobkowicz, and was the fourth son of Philip Hyacinth Joseph, 4th Prince of Lobkowicz and Duke of Sagan (1680–1737).
He founded the Hořin-Měleník branch of the Lobkowicz family. Johann Georg Christian married Countess Henriette von Waldstein-Wartenburg (1702 - 1780) in Prague on November 11, 1718. They had 10 children.
He fought under Eugene of Savoy against the Turks in the first half of the 18th century.
During the War of the Austrian Succession, he fought the French and Bavarians between Prague and Munich, and was later Governor of the Duchy of Milan between 1743 and 1745. Subsequently, he became the commander-in-chief of the Habsburg forces in Italy, where he lost the Battle of Velletri against the army of King Charles III of Spain.
In 1745 Christoph Willibald Gluck accepted an invitation to become house composer at London"s King"s Theatre, travelling to England in the company of Georg Christian. Either Gluck or Georg Christian bought a copy of Handel"s Messiah.