皇祖 こうそ皇宗 こうそうではありませんでした
kōso kōsōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 皇祖皇宗

1. Was not my imperial ancestor.; Was not of the imperial lineage.

Past/Perfective
Negative
Polite
Formal Register