What is the earliest year that Juliane von Schwellenberg could have served Queen Charlotte of Great Britain as the queen's bedchamber maiden?
Juliane von Schwellenberg: Juliane Elisabeth von Schwellenberg (1728–1797), also known as "Madam Schwellenberg", was a bedchamber woman of the queen consort of Great Britain, Charlotte of Mecklenburg-Strelitz. Charlotte of Mecklenburg-Strelitz: Charlotte of Mecklenburg-Strelitz (Sophia Charlotte; 19 May 1744 – 17 November 1818) was by marriage to King George III the Queen of Great Britain and Ireland from her wedding in 1761 until the union of the two kingdoms in 1801, after which she was Queen of the United Kingdom of Great Britain and Ireland until her death in 1818.
1761