[2] On 15 July 1733, she married her cousin count Bernhard Matthias von Bassewitz (1706–1783), chamberlain in the grand-princely court of Holstein.
After her husband's death on 29 December 1783, she inherited his estate at Gut Dalwitz, where she spent her old age, met with the widowed Duchess Louise Friederike von Mecklenburg-Schwerin (1721–1791) and finally died in 1790.
Her contemporaries considered her a "woman of great and rare talents"[3] and was mentioned in the works of the philosophers Christian Wolff and Gottfried Wilhelm Leibniz.
She also wrote poems, including an ode marking her survival of breast cancer, which she is said to have achieved almost solely with the use of reticulum roots.
Her letters were admired at the time for the "purity and elegance of their style, their sharpness, their acquaintance with our literature, and for the heart of this rare woman".