In 1592 Toyotomi Hideyoshi unified Japan and invaded Korea in an attempt to conquer the Ming Empire. Almost the entire country of Joseon fell to invaders and had no choice but to ask the help from Wanli Emperor of the Ming Dynasty. For this help Joseon offered princess Li Jin Yi to the Wanli Emperor.
He Zhengjun , Weihua Zhan , Zhang Xiaojun , Shui Jiang , Yang Qingwen , Dong Qiming