Since most surviving members of the Mori family were still children they did not participate in the siege and burning of Mt. Hiei (in 1571), but in fact the origins of the conflict between Mt. Hiei and the Mori clan go back to the death of the first ancestor of the Mori clan, Shichiro Yoshitaka MUTSU, who had been killed by an arrow shot by one of the warrior monks of Mt. Hiei, leading some to see the burning of the temples on Mt. Hiei as karmic retribution for Yoshinari's death.
この比叡山焼き討ち(1571年)においては、森家の遺族は幼少の子らが多くこの戦に加わっていないが、そもそも森家の血筋は祖先　陸奥七郎義隆が比叡山の僧兵の矢に倒れたという因縁があり、この度の可成討ち死にの要因をも作った。