Ryoan-ji Temple, which is famous for its dry-landscape Hojo Rock Garden (commonly known as the "Rock Garden of Ryoan-ji"), is a Zen temple built in 1450 by Katsumoto HOSOKAWA, a feudal lord and official of the Muromachi Shogunate who acted as the commander of the eastern army in the Onin War.
「龍安寺の石庭」として知られる枯山水の方丈石庭で有名な龍安寺は、室町幕府の管領、守護大名で、応仁の乱の東軍総帥でもあった細川勝元が宝徳2年（1450年）に創建した禅寺である。