Tamagawa Chōtatsu

Tamagawa Wōji Chōtatsu, also known by his Chinese style name Shō Shin, was a prince of Ryukyu Kingdom.
Prince Tamagawa was the seventh son of King Shō Kō. He was also a half-brother of King Shō Iku, Prince Ōzato Chōkyō and Prince Ie Chōchoku. Nakazato Chōkei had no heir and adopted him. After Chōei's death, he became 14th head of the royal family Tamagawa Udun, and inherited the hereditary fief of his family, Kanegusuku magiri.
King Shō Tai dispatched a gratitude envoy after he took power to Edo, Japan in 1850. Prince Tamagawa and Nomura Chōgi were appointed Envoy and Deputy Envoy respectively. They sailed back in the next year.
Prince Tamagawa kept in close touch with the pro-Satsuma faction, including Makishi Chōchū, Onga Chōkō and Oroku Ryōchū. It was said that they planned to depose King Shō Tai and install him. In 1859, Makishi, Onga and Oroku were involved in the Makishi Onga Incident and arrested. Prince Ie was appointed as judge to interrogate them. Prince Ōzato suggested that Prince Tamagawa should be put into prison, but was dissuaded by the king's instructor, Tsuhako Seisei. Prince Tamagawa was banned from politics and under house arrest. He died in the same year.