The 1430s decade ran from January 1, 1430, to December 31, 1439.
Year 1380 (MCCCLXXX) was a leap year starting on Sunday of the Julian calendar.
The 1450s decade ran from January 1, 1450, to December 31, 1459.
The 1380s was a decade of the Julian Calendar which began on January 1, 1380, and ended on December 31, 1389.
The 1350s was a decade of the Julian Calendar which began on January 1, 1350, and ended on December 31, 1359.
The 1360s was a decade of the Julian Calendar which began on January 1, 1360, and ended on December 31, 1369.
The 1420s decade ran from January 1, 1420, to December 31, 1429.
The 1410s decade ran from January 1, 1410, to December 31, 1419.
The 1370s was a decade of the Julian Calendar which began on January 1, 1370, and ended on December 31, 1379.
Year 1470 (MCDLXX) was a common year starting on Monday of the Julian calendar.
Year 1362 (MCCCLXII) was a common year starting on Saturday of the Julian calendar.
Year 1409 (MCDIX) was a common year starting on Tuesday of the Julian calendar.
Year 1423 (MCDXXIII) was a common year starting on Friday of the Julian calendar.
Year 1311 (MCCCXI) was a common year starting on Friday of the Julian calendar.
Year 1271 (MCCLXXI) was a common year starting on Thursday of the Julian calendar.
Konrad I of Masovia, from the Polish Piast dynasty, was the sixth Duke of Masovia and Kuyavia from 1194 until his death as well as High Duke of Poland from 1229 to 1232 and again from 1241 to 1243.
The Lithuanian Civil War of 1432–1438 was a war of succession to the throne of the Grand Duchy of Lithuania, after Vytautas the Great died in 1430 without leaving an heir. The war was fought on the one side by Švitrigaila, allied with the Teutonic Knights, and on the other by Sigismund Kęstutaitis, backed by the Kingdom of Poland. The war threatened to sever the Union of Krewo, the personal union between Poland and Lithuania. Švitrigaila's alliance with the Grand Master of the Teutonic Order, Paul von Rusdorf, launched the Polish–Teutonic War (1431–1435) but failed to secure victory for Švitrigaila.
This is the 1326-1332 Polish-Teutonic War. For a list of all Polish-German Wars, see Polish-German Wars.
The 1400s ran from January 1, 1400, to December 31, 1409.
The Jagiellonian or Jagellonian dynasty, otherwise the Jagiellon dynasty, the House of Jagiellon, or simply the Jagiellons, was the name assumed by a cadet branch of the Lithuanian ducal dynasty of Gediminids upon reception by Jogaila, the Grand Duke of Lithuania, of baptism as Władysław in 1386, which paved the way to his ensuing marriage to the Queen Regnant Jadwiga of Poland, resulting in his ascension to the Crown of the Kingdom of Poland as Władysław II Jagiełło, and the effective promotion of his branch to a royal dynasty. The Jagiellons were polyglots and per historical evidence Casimir IV Jagiellon and his son Saint Casimir possibly were the last Jagiellons who spoke in their patrilineal ancestors' Lithuanian language; however, even the last patrilineal Jagiellonian monarch Sigismund II Augustus maintained two separate and equally lavish Lithuanian-speaking and Polish-speaking royal courts in Lithuania's capital Vilnius. The Jagiellons reigned in several European countries between the 14th and 16th centuries. Members of the dynasty were Kings of Poland (1386–1572), Grand Dukes of Lithuania, Kings of Hungary, and Kings of Bohemia and imperial electors (1471–1526).
