March 1 » The Unitas Fratrum is established in the village of Kunvald, on the Bohemian-Moravian borderland. It is to date the second oldest Protestant denomination.
August 14 » Publication of the Mainz Psalter, the first book to feature a printed date of publication and printed colophon
When copying data from this family tree, please include a reference to the origin: Gordon Gray Warder, "Stevens Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/stevens-family-tree/I262061531931.php : accessed May 7, 2025), "Marie (Marie ) de Valois (Capet)of Orléans, Viscountess of Narbonne (1457-1493)".
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