Koh Se-kai (Chinese: 許世楷; pinyin: Xǔ Shìkǎi; Wade–Giles: Hsu3 Shih4-kai3; Pe̍h-ōe-jī: Khó͘ Sè-khái; born July 7, 1934) is a Taiwanese historian, politician, and diplomat. He was a major leader of the Taiwan independence movement. In 2004, Koh was appointed to be the Republic of China’s top representative to Japan. By June 2008, Koh had retired.
Source: “Koh Se-kai”, English Wikipedia (CC BY-SA 4.0), excerpt