Major Events
- Apr 14 The foundation stone of Cathedral St. Peter and St. Paul in Nantes, France is laid
- May 30 The Battle of Lipany (also called the Battle of Česky Brod), ending Taborites influence
- Jul 28 Navigator Gil Eanes leaves Cape Bojador for Lisbon
- Nov 24 River Thames in London freezes over
Born in 1434
- Mar 19 Ashikaga Yoshikatsu, Japanese shogun (d. 1443)
- Aug 29 Janus Pannonius, Hungarian poet and translator, born in Čazma, Croatia (d. 1472)
- Sep 18 Eleanor of Portugal, Holy Roman Empress, born in Torres Vedras, Lisbon, Portugal (d. 1467)
- Sep 23 Yolande of Valois, Duchess of Savoy (d. 1478)
Who Died in 1434
- May 16 Pieter Appelmans, Flemish architect/master builder, dies at about 60
- May 30 Prokop the Great, Hussite general
- Jun 1 Władysław II Jagiełło, King of Lithuania and later also Poland, dies (b.1351)
- Nov 12 King Louis III of Naples
Famous Weddings in 1434
- Mar 1 Jacqueline, Countess of Haintaut formally marries Frank van Borssele 2 years after first secretly marrying him
James I