Musō Soseki was a Rinzai Zen Buddhist monk and teacher, and a calligraphist, poet and garden designer. The most famous monk of his time, he is also known as Musō Kokushi , an honorific conferred on him by Emperor Go-Daigo. His mother was the daughter of Hōjō Masamura (1264–1268), seventh Shikken (regent) of the Kamakura shogunate.