宮中 きゅうちゅう さん殿 でんじゃなかったです
kyūchūsandenjanakattadesu

Noun
Desu Copula

The polite, past negative form of 宮中三殿

1. Was not one of the three palaces (of the Imperial Palace).; Wasn't in the inner palace.

Past/Perfective
Negative
Polite
Casual Register