YOU SAID:

The cat is partying at the duchess' castle.

INTO JAPANESE

猫は公爵夫人の城でパーティーをしています。

BACK INTO ENGLISH

The cat is partying at the Duchess's Castle.

INTO JAPANESE

猫は公爵夫人の城でパーティーをしています。

BACK INTO ENGLISH

The cat is partying at the Duchess's Castle.