Probably the most well known spear school, not in the least because of their friendly crossing of paths with Miyomoto Musashi this school focus’s on the use of the spear with a cross piece. Legend has it the founder, on seeing the reflection of the crescent moon shining on Sarusawa pond, was inspired to create a spear with a cross-shaped spearhead. Hōzōin-ryū was founded by Hōzōin Kakuzenbō In'ei (宝蔵院 覚禅房 胤栄, 1521–1607) in c. 1560. In'ei was a Buddhist monk of Kōfuku-ji Temple in Nara, Japan.... At the same time, he was coached and mentored by Daizendayū Moritada (大膳太夫盛忠), a master of the spear. Under this master's guidance, In'ei honed his spearmanship. It is said that one evening, on seeing the reflection of the crescent moon shining on Sarusawa pond, he was inspired to create a spear with a cross-shaped spearhead. He imagined this style of spear would be more effective in fighting. With this new type of spear (known as jumonji-yari 十文字槍), he founded the Hōzōin-ryū.