What Happened in 1427
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- May 10 Jews are expelled from Bern, Switzerland
- Sep 9 Thomas de Ros, 9th Baron de Ros of Helmsley, English politician, born in Conisbrough Castle, Yorkshire (d. 1464)
- Oct 26 Sigismund, Archduke of Austria, born in Innsbruck, Austria (d. 1496)
- Nov 30 Casimir IV Jagiellon, King of Poland (1447-92), born in Kraków, Poland (d. 1492)
- Apr 17 John IV, Duke of Brabant and Limburg (founded University of Leuven), dies at 23
- May 7 Thomas la Warr, 5th Baron De La Warr, English churchman
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List of Years