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: Paul de Metter, "Family tree De Metter, Zuijderwijk, Holwedel, De Wolf", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-de-metter-zuijderwijk-holwedel-de-wolf/I2590.php : accessed September 23, 2024), "Symon Heermans (Sijmons Heermansz) van Oegstgeest (1366-1457)".
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