Sigizmund Krzhizhanovsky (1887–1950), Russian and Soviet short-story writer
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Sigizmund Kats (1908–1984), Soviet composer who specialized in writing popular songs
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Sigizmund Levanevsky (1902–1937), Soviet aircraft pilot of Polish origin and a Hero of the Soviet Union
Sigizmund Levanevsky | Sigizmund Krzhizhanovsky | Sigizmund Kats |