In 1429, through the financial assistance of Sojun KOSODEYA, a wealthy merchant of the Rokkakudo-cho in Kyoto, Honno-ji Temple (本応寺, one character 応 in its name was altered 能 to be 本能寺 in 1433, but pronunciation remained unchanged) came under the patronage of Mitsumoto HOSOKAWA and became one of the central temples of the Happon School, the other being the recently established Amagasaki Honko-ji Temple (in Amagasaki City).
1429年（永享元年）京都六角堂町の豪商小袖屋宗句の援助により本応寺（1433年に本能寺と改称される）は、細川満元の庇護を受けて創建された尼崎本興寺(尼崎市)とともに八品派の中心的な寺院となった。