Soon King Zheng had left the dukedom to Luoyang for some diplomatic matters ; his mother soon wrote a letter to Duan , ordering him to revolt now .
Mother would open the gates of the capital for King Zheng .
Soon King Zheng had left the dukedom to Luoyang for some diplomatic matters ; his mother soon wrote a letter to Duan , ordering him to revolt now and she would open the gates of the capital for him .