In Korea, Koshu was pronounced as Konju, and indicated a daughter of a king and queen, while a daughter from other king consort was given a title of Okishu or 翁主.
朝鮮では「コンジュ（）」と発音し、国王の正妃の生んだ娘を指していた（その他の後宮所生の娘は「翁主」）。