It was an incident that Yoshikazu HIKI and his family, who exerted power as a maternal relative of the second Seii Taishogun (literally, "great general who subdues the barbarians") MINAMOTO no Yoriie, were destroyed by the Hojo clan.
北条氏によって、2代征夷大将軍源頼家の外戚として権勢をふるった比企能員とその一族が滅ぼされた事件。