December 8 » The first battle between the forces of Švitrigaila and Sigismund Kęstutaitis is fought near the town of Oszmiana (Ashmyany), launching the most active phase of the Lithuanian Civil War.
When copying data from this family tree, please include a reference to the origin: Donald Simmons Jr., "Donald A.C. Simmons Jr. Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/donald-a-c-simmons-jr-family-tree/I132354293782.php : accessed May 9, 2025), "Katherine Peverell (± 1384-1432)".
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