archduchess
noun
- title of nobility in Austria and the Habsburg Empire
Wiktionary
noun
Etymology: From French archiduchesse, feminine of archiduc, corresponding to archduke + -ess or arch- + duchess.
- 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.”