archduchess means A daughter or granddaughter of the Emperor of Austria-Hungary, or the wife of a son or grandson of the Emperor of Austria-Hungary. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Etymology
From French archiduchesse, feminine of archiduc, corresponding to archduke + -ess or arch- + duchess.
noun
- A daughter or granddaughter of the Emperor of Austria-Hungary, or the wife of a son or grandson of the Emperor of Austria-Hungary“If that weren’t enough, in 1993 she married Karl von Habsburg, otherwise known as Archduke Karl of Austria, Prince Royal of Hungary and Bohemia, and the couple set up home in Salzburg, producing two archduchesses and an archduke.”