At the very least the death of Chokei's younger brother Fuyuyasu ATAGI in 1564 is attributed as murder, as the end result of Hisahide's slander against Chokei; moreover, it appears that Hisahide was trying to take over the Miyoshi clan.
少なくとも、1564年の長慶の弟・安宅冬康の死は久秀が長慶に讒言して殺させたものであり、久秀はどうも三好氏の乗っ取りを企んでいたようである。