It is said that although Mareyoshi tried to ask help to dogo (a local clan), Yukimune YASU, before he carried out it, he was detected by kenin (retainers) of TAIRA no Shigemori, Ietsuna HASUIKE and Toshio HIRATA, encountered a surprise attack, and was killed (The Twenty Fifth Day of the Ninth Month of the First Year of Juei in "Azuma Kagami" [The Mirror of the East]).
希義は土豪の夜須行宗を頼ろうとするが、平重盛の家人である蓮池家綱・平田俊遠に事前に察知され、奇襲を受けて討ち取られたという（『吾妻鏡』寿永元年9月25日条）。