Lestek, born around the year eight hundred seventy to eight hundred eighty, was a prominent figure in early Polish history, serving as the second duke of Polans. He was the son of Siemowit and is notably mentioned in the Gesta principum Polonorum, the oldest Polish chronicle authored by Gallus Anonymus. This chronicle highlights the significance of the dukes of Polans as the foundation of the Piast dynasty, which is recognized as the first historical ruling dynasty of Poland.
Initially, Lestek's existence was widely accepted among historians. However, during the latter half of the nineteenth century, doubts began to surface regarding his historicity. This debate was largely resolved by the work of historian Henryk Łowmiański, who supported the credibility of Gallus Anonymus's account, thereby affirming the historicity of Lestek and his immediate predecessors to Mieszko I. This perspective has since become the prevailing view in Polish historiography.
The etymology of Lestek's name remains uncertain, though it is thought to derive from the old Polish word 'lście,' meaning 'crafty.' Some scholars suggest it may be a diminutive of the Slavic names Lścimir or Lścisław. While the number and identities of Lestek's wives or consorts are not definitively known, there are theories regarding his marital connections. One theory posits that he may have been married to a Moravian princess, while another, based on a fourteenth-century Belgian chronicler's accounts, suggests a Saxon princess could have been his wife, with whom he had a son named Ewraker, who later became the bishop of Liège.
Lestek's legacy continued through his son, Siemomysł, who succeeded him as the ruler of the Polish state, ensuring the continuation of the Piast dynasty's influence in the region.