Caroline moved into the Palais Holnstein in Munich, where her husband's position opened many doors for her at court, though life among the nobility bored her.

[citation needed] On 9 November 1831, aged 16, she married 34-year-old Count Carl Theodor von Holnstein aus Bayern (1797–1857), the son of Maximilian Joseph, Count of Holnstein, and his wife Princess Maria Josepha of Hohenlohe-Waldenburg-Schillingsfürst (eldest daughter of Prince Charles Albert II).

[4][2] Together, they were the parents of:[5] Count von Holnstein died in 1857 and his estates, including Schwarzenfeld Castle, were inherited by their only surviving son, Maximilian.

Reportedly, Count von Holnstein tolerated the relationship but refused her an official separation, even going so far as to have her legitimate and illegitimate children educated together.

[9] Her illegitimate children were legitimized during her lifetime and on 7 July 1859 they were raised to the Bavarian Freiherrenstand with the title Künsberg Freiherr von Fronberg.