and two daughters: one of them called Furihime (振姫, later known as Kōshōin 孝勝院). Tadatsugu became the lord of Okayama Castle at age five, following the
King Sejong. The 3rd lunar month is 21 March – 20 April in Gregorian date 《承政院日记》英祖15年1月4日:傳于鄭必寧曰, 翁主爲和協翁主。 Sin Gwang-su's birth and death years were unknown