Wiktionary
tsarevna
n. The daughter of a tsar.
Wikipedia
Tsarevna
Tsarevna (Царевна) was the daughter of a Tsar of Russia before the 18th century. The name is meant as a daughter of a Tsar, or as a wife of a Tsarevich.
All of them were unmarried, except for the daughters of Ivan V, who were born in the late 17th century, and grew old in convents or in the Terem Palace.
Usage examples of "tsarevna".
The younger tsareviches, their knyagínya wives and the tsarevna daughters were not so splendidly attired, but their garb was by no means tawdry.
Wish for us both to marry tsarevnas and die at a hundred and twenty, rich as lords and surrounded by great-grandchildren—"