Year 1434 (MCDXXXIV) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. » For the controversial book by Gavin Menzies, see: . Events of 1434 April 14 – The foundation stone of Cathedral St. Peter and St. Paul in Nantes, France's laid. May 30 – Hussite Wars – Battle of Lipany: The Catholics and Ultraquists defeat the Taborites, ending the Hussite Wars. 10 July to 9 August, Suero de Quiñones and his companions stage the Pas… (More on 1434)