Charlotte of Monaco (1719 – 1790)
She remained unmarried, and died childless. She was once engaged to Frédéric Jules de La Tour d'Auvergne, "Prince of Auvergne". Yet, this proposed marriage did not come to be and before she was much older the engagement was broken off and Charlotte went to a convent to begin her education. She considered becoming a nun while there, wrestled with the decision but did finally take her vows as a sister of the Order of the Visitation. She did leave the convent a number of times to visit her family