Shuiichiro Yuki
Father of Kei Yuki (in the Space Pirate series,) Shuiichiro was a scientist working on developing a space colony which would precisely replicate conditions found on earth. When he died while testing his creation, he was mocked as a fool and a dreamer, though it later came to light that the failure of the experiment was due to sabotage by Kei's scheming boyfriend Kazuya Katagiri. After Shuiichiro's death, his wife Fumi died shortly thereafter, apparently of a broken heart. (Source: cornponeflicks.org/harlock/friends.html)