Born as Ekaterina Dmitrievna
Cantemir in
Saint Petersburg on 4 November 1720, she was the daughter of the Moldavian prince
Dimitrie Cantemir (1673–1723). In 1711, her father accepted
Russian citizenship and moved to
Russia. He received, from
Peter I, the title of
Grand Duke and in 1717 married Princess
Anastasiya Ivanovna Trubetskaya. They had three children, but only Ekaterina reached adulthood, later losing her father when she was only four years old. In 1744, she became
maid of honor, one of the most beautiful, charming and famous women in the entourage of Empress
Elizabeth of Russia. In 1745, together with her mother, she went abroad to join her mother's second husband,
Ludwig Gruno of Hesse-Homburg. After his death in
Berlin, the mother and daughter did not immediately return home. They traveled extensively, lived in
Paris for a few years, and, only with the death of their grandfather in 1750, returned to Russia. ==Marriage==