The Jagiellons () were a royal dynasty originating from Lithuanian House of Gediminas dynasty that reigned in Central European countries (present day Lithuania, Belarus, Poland, Ukraine, Latvia, Estonia, parts of Russia (including nowadays Kaliningrad oblast), Hungary, Czech Republic, Slovakia) between the 14th and 16th century. Members of the dynasty were Grand Dukes of Lithuania 1377–1392 and 1440–1572, kings of Poland 1386–1572, kings of Hungary 1440–1444 and 1490&nda… (More on Jagiellons)