Yelü Bei
Soon after conquering Balhae, Emperor Taizu died. Empress Shulü, at that time with Yelü Bei at Dongan, apparently to destroy potential dissent, gathered the wives of many generals and officials that she considered difficult to control, and stated to them, "I am now a widow. You should be like I am." Then, she gathered their husbands and, weeping, asked them, "Do you miss the deceased Emperor?" They responded, "The deceased Emperor has shown us much grace. Of course we miss him." She responded, "If you miss him, then go see him." She then slaughtered them. She then, leaving Emperor Taizu's younger brother Yelü Anduan (耶律安端) temporarily in charge at Dongdan, returned to the Khitan capital Linhuang (臨潢, in modern Chifeng, Inner Mongolia) with Yelü Bei, escorting Emperor Taizu's casket.