柳生新陰流
is one of the oldest Japanese schools of swordsmanship ("kenjutsu"). Its primary founder was Kamiizumi Nobutsuna, who called the school Shinkage-ryū. In 1565, Nobutsuna bequeathed the school to his greatest student, Yagyū Munetoshi, who added his own name to the school. Today, the Yagyū Shinkage-ryū remains one of the most renowned schools of Japanese swordsmanship. Its name roughly means "Yagyū New Shadow School".