Baroness Maria Caroline Charlotte von Ingenheim was daughter of Baron Daniel von Ingenheim, Seigneur de Lorry (1666–1723) and his wife Princess Maria Anna Johanna von Hessen-Wanfried (1685–1764).

In 1723 she married Count Franz Johann Hieronymus Innozenz von Spreti (1695–1772) and had issue. From her liaison with Emperor Charles VII, she was the ancestral mother of the Grafen von Holnstein aus Bayern line.

• Franz F. Nöhbauer: Die Wittelsbacher: eine deutsche Chronik, eine europäische Dynastie, Verlag Scherz, 1979, p. 217; (Ausschnittscan)^{[clarification needed]}