Tsarevna

Tsarevna (Russian: царевна, IPA: [t͡sɐˈrʲevnə]) was a title given to the daughters of tsars in Russia before the 18th century.^[1] The male equivalent was tsarevich.

Painting of a tsarevna by Vasily Surikov

All of them died unmarried with the exception of the daughters of Ivan V. Notably, his daughter Catherine married Karl Leopold of Mecklenburg-Schwerin.

Both tsarevna and tsarevich were replaced with grand duchess and grand duke (with tsesarevich given to the heir apparent).