Jan Rokycana, Czech bishop and theologian (b. 1396)
John of Rokycany, also known as Jan of Rokycany, in Czech Jan Rokycana, and Jan z Rokycan (c. 1396 in Rokycany, Bohemia - 21 February 1471 in Prague) was a Czech Hussite theologian in the Kingdom of Bohemia and a key figure of the Bohemian Reformation.