Sesshū Tōyō (Japanese: 雪舟 等楊; Oda Tōyō since 1431, also known as Tōyō, Unkoku, or Bikeisai;1420 – 26 August 1506) was the most prominent Japanese master of ink and wash painting from the middle Muromachi period. He was born into the samurai Oda family (小田家), then brought up and educated to become a Rinzai Zen Buddhist priest. However, early in life he displayed a talent for visual arts, and eventually became one of the greatest Japanese artists of his time, widely revered throughout Japan and China.
Sesshū studied under Tenshō Shūbun and was influenced by Chinese Song Dynasty landscape painting. In 1468–9 he undertook a voyage to Ming China, where too he was quickly recognized as an outstanding painter. Upon returning to Japan, Sesshū built himself a studio and established a large following, painters that are now referred to as the Unkoku-rin school—or "School of Sesshū". Although many paintings survive that bear Sesshū's signature or seal, only a few can be securely attributed to him. His most well-known work is the so-called "Long Landscape Scroll" (山水長巻, Sansui chōkan).
Source: Wikipedia, "Sesshū Tōyō", available under the CC-BY-SA License.