archduchy

The revenues of the archduchy were some four millions of dollars.
The Empire of Austria; Its Rise and Present Power|John S. C. Abbott
Transleithan, trans-lī′than, adj. beyond the Leitha, the boundary river between the archduchy of Austria and Hungary.
Chambers's Twentieth Century Dictionary (part 4 of 4: S-Z and supplements)|Various
Meanwhile Styria and Carinthia Austria created an archduchy.
Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 1|Various
He also ordered the Jews to be expelled from the archduchy of Austria within six months.
History of the Jews, Vol. IV (of VI)|Heinrich Graetz

The archduchy of Austria was, and Hungary was not, German, in the reign of the emperors.
Down the Rhine|Oliver Optic

British Dictionary definitions for archduchy

archduchy

/ (ˈɑːtʃˈdʌtʃɪ) /

noun plural -duchies

the territory ruled by an archduke or archduchess

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