Based on a false charge by uncle Masanaga MIYOSHI, Nagayoshi MIYOSHI, whose father was killed by Harumoto HOSOKAWA, requested of his lord Harumoto the position of Daikan over 17 Shogunal properties and the suppression of Masanaga, but when this was sidelined he set up Ujitsuna HOSOKAWA as lord, and turned his back on Harumoto.
叔父　三好政長の讒言により、細川晴元に父を謀殺された三好長慶は、主君　晴元に幕府御料17箇所代官職と政長討伐を要求したが、これが退けられると、細川氏綱を主君に擁立、晴元に背いた。