Friendly relations between the Asai family and the Oda family were severed in 1570, due to Nobunaga's attack on Yoshikage ASAKURA (who was closely related to the Asai clan) in Echizen Province (present Fukui Prefecture).
元亀元年（1570年）、信長が浅井氏と関係の深い越前国（福井県）の朝倉義景を攻めたため、浅井家と織田家の友好関係は断絶した。