grand duchy

The territory owned, ruled, or reigned over by a grand duke or grand duchess; contrast grand dukedom.

Japanese Meaning

大公が所有、支配または統治する領土 / 大公国

The grand duchy maintained its neutrality while neighboring kingdoms went to war.

隣国が戦争に向かう中、その大公国は中立を維持した。

Sense（1）

The territory owned, ruled, or reigned over by a grand duke or grand duchess; contrast grand dukedom.

grand duchies

（ plural ）