KORKOWSKI in Marienwerder or possibly Lanken Kries Flatow
I am searching for records or any information about a Martin Korkowski, born about 1782 in Marienwerder or Lanken Kries Flatow. He was once married to an Anna, and then to a Hedwig (Wrzeszck) Paschke. He is the father of Mathias Korkowski (1826-1940). Mathias died in Millerville, Minnesota, United States. Martin's father's name might be Andrew. I would like to where/when Martin died, along with any records of him or his son. I will provide links to their public family search profiles. Thank you in advance for any assistance! P.S. I am also curious to find any further information about a Piotr Korkowski, who was Grand Prince of Kalety in 1389..I have only found mention of him at this site: https://www.nationstates.net/page=dispatch/id=994178 I am also curious about a Mical Korkowski from Lomza, circa 1600s.... Martin: https://www.familysearch.org/tree/person/family/LBLN-S4V Mathias: https://www.familysearch.org/tree/person/vitals/KZ5V-RW8