May 23 In the year 1423 benedict XIII, [Pedro the Luna], Spanish Pope (1394-1423), dies
Jun 25 Reinald IV, duke of Gelre & Gulik (Reinoud I), dies in the year 1423.
Oct 09 Frederik III of Blankenheim, bishop of Straatsburg/Utrecht, dies on this day in history.
May 30 On this day in history birth of georg Purbach, German mathematician and astronomer (d. 1461)
Jul 03 In the year 1423 birth of louis XI, King of France (1461-83)
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Important Dates And Events In History - Hisdates.Com