Sen Sōshitsu XV is the 15th-generation Grand Master of Urasenke, which is one of the most widely known schools of Japanese tea, and served in official capacity from 1964 to 2002. In 1949, he received the Zen title Hōunsai. From Wikipedia
His wartime service as a naval aviator led him to champion peace through chanoyu, earning top Japanese cultural honors.
