February 9, 1896 – December 27, 1993 (97)Finnish military commander and politician, Member of Parliament, Lieutenant Colonel, one of the founders of the Lapua Movement and the Patriotic People's Movement, author, Notable Knight of the Prussian Iron Cross, Notable Knight of the Cross of Liberty
His father:
Valter Osvald SivénMay 18, 1868 – December 13, 1918 (50)
Finnish physician, activist and one of the founders of the Jäger movement, Doctor of Medicine and Surgery, Docent, Senior Lieutenant, Chief Medical Officer of the Finnish Army, Notable Knight of the Prussian Iron Cross, Notable Knight of the Cross of Liberty
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His brother:
Hans Håkon Christian "Bobi" SivénApril 18, 1899 – January 12, 1921 (21)
Finnish public activist, participant of the Finnish War of Independence and the White Sea Karelian Expedition, Lance Corporal, Lensmann of Repola Parish, Representative of the Ministry of Foreign Affairs of Finland in Repola and Porosozero, Notable Knight of the Cross of Liberty, shot himself in protest against the Tartu Peace Agreement