Jagiellon Dynasty
The Jagiellonian dynasty (Polish: Jagiellonowie, Lithuanian: Jogailaičiai, Czech: Jagellonci, Hungarian: Jagelló, Belarusian: Ягелоны) was a royal dynasty originating from the Lithuanian House of Gediminas dynasty that reigned in Central European countries (present day Lithuania, Belarus, Poland, Ukraine, Latvia, Estonia, parts of Russia (including today's Kaliningrad oblast), Hungary, Czech Republic, Slovakia, Croatia) between the 14th and 16th centuries. 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 1490–1526), and Kings of Bohemia (1471–1526).
The dynastic union between the two countries (converted into a full administrative union only in 1569) is the reason for the common appellation "Poland–Lithuania" in discussions about the area from the Late Middle Ages onwards. One Jagiellonian briefly ruled both Poland and Hungary (1440–44), and two others ruled both Bohemia (from 1490) and Hungary (1490–1526) and then continued in the distaff line as the Eastern branch of the House of Habsburg.
Read more about Jagiellon Dynasty: Name, Pre-dynasty Background, Rulers of The House of Jagiello, Bohemia and Hungary, Maturity Pattern