Bohemian Kings: 1 king
King Zikmund (a.k.a. Sigismund)   1419-1437  
German Kings and Holy Roman Emperors: 1 king-emperor
King-Emperor Sigismund   1410-1437  
Hungarian Kings and Queens: 1 king
King Zsigmond (a.k.a. Sigismund)   1387-1437  
Other Royalty: 3 princes
Sigismund of Prussia   1864-1866   Prussia  
Friedrich Sigismund of Prussia   1891-1927   Prussia  
Sigismund of Prussia   1896-1978   Prussia  
Polish High Dukes and Kings: 3 kings
King Zygmunt I the Old (a.k.a. Sigismund)   1506-1548  
King Zygmunt II Augustus (a.k.a. Sigismund)   1548-1572  
King Zygmunt III Vasa (a.k.a. Sigismund)   1587-1632  
Pulitzer Award Winners: 1 literature
(literature) T. S. Stribling (middle name Sigismund)   1933   The Store  
Saints: 1 saint
Saint Sigismund of Burgundy   ?-524  
Swedish Kings and Queens: 1 king
King Sigismund   1592-1599