Ziemomyse, Duke of the Polans

- Bef 964

• Name	Ziemomyse
  Suffix	Duke of the Polans
  Gender	Male
  Death	Bef 964  [1]
  Person ID	I6810	Ancestry of PNH, TNH, and others | Ancestor of AP, Ancestor of DDB, Ancestor of EK, Ancestor of GR, Ancestor of KL, Ancestor of LD, Ancestor of LDN, Ancestor of LMW, Ancestor of TNH, Ancestor of TSW, Ancestor of TWK
  Last Modified	6 Jan 2018

  
  

  Family
  Children	+ 1. Mieszko I, Duke of the Polans,   b. Abt 935   d. 25 May 992 (Age 57 years)
  Family ID	F3665	Group Sheet  |  Family Chart
  Last Modified	3 Jul 2026

  
  

• Notes

  Also called Siemomysl. Supposedly a son of Lestek, son of Siemowit, making him the third pagan Polans duke of the Piast dynasty, but the actual existence of any of his claimed forbears is unclear. Ziemomyse's existence as the father of Poland's first Christian ruler, Mieszko I, is relatively well-attested.

  
  

• Sources

  [S49] Genealogics by Leo Van de Pas, continued by Ian Fettes and Leslie Mahler.