Caroline (1762-1823), married Prince Frederick of Hesse-Kassel (1747-1837), the son of Landgrave Frederick II and Princess Mary of Great Britain and the founder of the cadet branche Hesse-Kassel-Rumpenheim.
In Schloss Rumpenheim in Offenbach am Main on 11 September 1832, Frederick Augustus married Landgravine Marie Louise Charlotte of Hesse-Kassel (b. Copenhagen, 9 May 1814 - d. Schloss Hohenburg, 28 July 1895).
Princess and Landgravine Augusta of Hesse-Kassel, third daughter of HSH Landgrave Frederick of Hesse-Kassel, and his wife, Princess Caroline of Nassau-Usingen, was born at Rumpenheim Castle, Kassel, Hesse.