Like the couple of Toshiie MAEDA and Hoshunin and the couple of Kazutoyo YAMANOUCHI and Kenshoin, the couple of Naoshige and Rengein was one of the most well-known couples in the Azuchi-Momoyama period.
前田利家・芳春院、山内一豊・見性院(山内一豊室)と並び安土桃山時代の代表的な夫婦として名高い。