Kenchū Keimitsu (堅中圭密) was a Japanese Zen Buddhist monk anddiplomat in theMuromachi period. He was the chief envoy of a mission sent by theAshikaga shogunate to the court of theYongle Emperor inNanjing. He would return to China at the head of four subsequent missions to the Chinese Imperial court inBeijing.

In 1403, Keimitsu was the chief abbot ofTenryū-ji monastery.^[1]

During the 1430s, the temple entered into atributary relationship with the Imperial Court ofMing Dynasty China. Chinese imperial policy at the time forbade formal trade outside of theSinocentric world order, and both the Japanese imperial court andAshikaga shogunate refused to submit to Chinesesuzerainty. This arrangement with the Tenryū-ji allowed for formal trade to be undertaken between the two countries, in exchange for China's control over the succession of chief abbot of the temple.^[2] This arrangement gave the Zen sect, and Tenryū-ji more specifically, a near monopoly on Japan's legitimate trade with China. In conjunction with the temple of the same name in Okinawa, as well as other Zen temples there, Tenryū-ji priests and monks played major roles in coordinating the China-Okinawa-Japan trade^[3] through to the 19th century.

The economic benefit of theSinocentric tribute system was profitable trade. The tally trade (kangō bōeki orkanhe maoyi in Chinese) involved exchanges of Japanese products for Chinese goods. The Chinese "tally" was a certificate issued by the Ming. The first 100 such tallies were conveyed to Japan by Kenchū Keimitsu in 1404. Only those with this formal proof of Imperial permission represented by the document were officially allowed to travel and trade within the boundaries of China; and only those diplomatic missions presenting authentic tallies were received as legitimate ambassadors.^[4]

• Japanese missions to Ming China

• Fogel, Joshua A. (2009).Articulating the Sinosphere: Sino-Japanese Relations in Space and Time. Cambridge:Harvard University Press.ISBN 9780674032590;OCLC 255142264
• Goodrich, Luther Carrington and Zhaoying Fang. (1976).Dictionary of Ming biography, 1368-1644 (明代名人傳), Vol. I;Dictionary of Ming biography, 1368-1644 (明代名人傳), Vol. II. New York:Columbia University Press.ISBN 9780231038010;ISBN 9780231038331;OCLC 1622199
• Kerr, George H. (2000).Okinawa, the History of an Island People. Tokyo:Tuttle Publishing.ISBN 978-0-8048-2087-5 (paper) ... with Mitsugu Sakihara.
• (in French)Titsingh, Isaac, ed. (1834). [Siyun-sai Rin-siyo/Hayashi Gahō, 1652],Nipon o daï itsi ran; ou,Annales des empereurs du Japon. Paris:Oriental Translation Fund of Great Britain and Ireland.OCLC 300555357
• Verschuer, Charlotte von. (2006).Across the Perilous Sea : Japanese Trade with China and Korea from the Seventh to the Sixteenth Centuries (Commerce extérieur du Japon des origines au XVIe siècle) translated by Kristen Lee Hunter. Ithaca, New York: East Asia Program, Cornell University, 2006.ISBN 978-1-933-94703-7ISBN 978-1-933-94733-4;OCLC 76809488
• Yoda, Yoshiie. (1996).The Foundations of Japan's Modernization: a comparison with China's Path towards Modernization. Leiden: Brill.ISBN 978-9-004-09999-9;OCLC 246732011

• 15th-century clergy
• 15th-century Japanese diplomats
• Zen Buddhist monks
• Buddhist clergy of the Muromachi period

• Articles containing Japanese-language text
• Articles with French-language sources (fr)