Tashiro Sanki was a Japanese physician who won great fame as "Sanki of Koga".
Tashiro Sanki was born on May 3, 1465 in Shizuoka, Japan.
Tashiro entered the Rinzai Zen Temple at the age of fifteen, then moved to the Ashikaga School, one of the oldest schools in Japan, teaching Confucianism, Chinese Medicine, War Science, I Ching, and so on. In 1487 he moved to China at the age of 23 and became a pupil of the famous monk doctor Yuè Hú (月 湖).
After a short stay in Kamakura, Tashiro became the personal physician of Ashikaga Shigeuji (足 利 成 氏) in Koga (Shimousa province, now Ibaraki prefecture). Here he gave up monastic status and married. During this time, his name spread as "Sanki of Koga" (古河 の 三 喜, Koga no Sanki). A few years later, he returned to his homeland and took care of the sick in the region.