List of Famous people with last name Siemienowicz
Kazimierz Siemienowicz
Kazimierz Siemienowicz was a general of artillery, gunsmith, military engineer, and one of pioneers of rocketry. Born in the Raseiniai region of the Grand Duchy of Lithuania, he served in the armies of the Polish–Lithuanian Commonwealth and of Frederick Henry, Prince of Orange, the ruler of the Netherlands. No portrait or detailed biography of him has survived and much of his life is a subject of dispute.
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