Tan Ti-Hiong (陳智雄), one of the founders of the Provisional government of the Republic of Taiwan. He graduated from Tokyo University of Foreign Studies, and spoke English, Japanese, Dutch, Malay, Taiwanese Holo and Mandarin. As a result, the Japanese stationed him to Indonesia as a diplomat.
He married a Dutch women and by the war's end, used the cover of his wife, and his leverage as a former Japanese diplomat to transfer large amount of Japanese weapons to Sukarno and his revolutionists to assist their fight for an independent Indonesia.
After witnessing the Indonesians gaining their independence, Tan devoted himself to free Taiwan from the grips of colonialism as well. He was appointed the ambassador to Southeast Asia by the president of the provisional government, and attended many international summits on behalf of the Republic of Taiwan.
PRC eventually began pressuring other nations to stop interactions with ROT, and pressured Sukarno to imprison Tan, and the pro-communist Sukarno did. Tan wrote a passionate letter to Sukarno from an Indonesian prison, asking Sukarno not to forget what he had done for Indonesian independence, and Sukarno let him go.
However, since by then he holds no citizenship , he wasn't allowed to enter any nation, so he ended up flying back and forth between Japan and Indonesia. On one such flight, he met a Swiss diplomat, who really wanted to help Tan out. The Swiss diplomat worked to get Tan Swiss citizenship, and in 1958, Tan finally got to enter Japan using a Swiss passport.
So Tan was a Swiss citizen living in Japan, promoting Taiwan independence. However, the KMT intelligence managed to sneak into Japan, kidnapped Tan, smuggled him out. Japan and most of the international communities were outraged. The KMT eventually let Tan out, but refusing to let him leave Taiwan. In 1961 the KMT arrested Tan again for promoting TI, and executed Tan in 1963, though not before they chopped off both his feet with an axe, as Tan chanted "Viva Taiwan Independence" through the corridors leading to the range.
Don't confuse me with your reasonableness.