Takashi YOSHIDA's view states that the reason SOGA no Iruka strove for the concentration of authority by destroying Prince Yamashiro no Oe was to do with the coup carried out by Gaisobun EN in Goguryeo, and furthermore; Isshi Incident was easily accepted by the officials since it was similar to the enthronement of the Queen under the Royal Family based on the political structure formed after the suppression of Pidam War done by Yushin KIM in Silla.
蘇我入鹿が山背大兄王を滅ぼし権力集中を図ったのは、高句麗における淵蓋蘇文のクーデターを意識しており、乙巳の変は新羅における金ユ信らによる毗曇の内乱鎮圧後の王族中心体制の元での女王推戴と類似していたが故に諸臣に受け入れられやすかったとする吉田孝の見解がある。