Three of the four ministers, Sonin, Ebilun and Oboi were members of the "Two Yellow Banners" originally under Hooge's command, as a result all three men were persecuted at one time or another during Dorgon's regency.
Three of the four ministers, Sonin, Ebilun and Oboi were members of the "Two Yellow Banners" originally under the command of Emperor Shunzhi's elder brother Hooge. Because of personal and political rivalries between Hooge and Dorgon all three men were persecuted at one time or another during Dorgon's regency.