May 29 » Battle of Gallipoli: The Venetians under Pietro Loredan defeat a much larger Ottoman fleet off Gallipoli.
May 30 » The Council of Constance, called by Emperor Sigismund, a supporter of Antipope John XXIII, burns Jerome of Prague following a trial for heresy.
When copying data from this family tree, please include a reference to the origin: Robert Briel, "Family tree Briel", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-briel/I502991.php : accessed February 27, 2026), "Maria van Nyenhoven (Neuenhoven) (????-1416)".
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