1370 King Casimir III the Great dies. New King, Louis Anjou, a son of Carol Robert, a King of Hungary resides in Hungary. Louis removes Red Ruthenia from Poland where he forces to convert to Catholicism, and annexes Red Ruthenia into Hungary. Aristocracy governs in Poland.
1382 After years of disturbances in Poland, Louis dies.
1382 At the Sieradz Confederation nobility rules, that the daughter of Louis, the next Queen of Poland must reside in Poland.
1382 As part of power struggle, Ziemowit IV enters Wielkopolska.
1383 Ziemowit IV is chosen for a king, but Hungarian, Cracovian and Sandomierz forces overpower him.
1384 Jadwiga, a younger daughter of Louis is brought by Polish magnates and arrives at Cracow Wawel castle.
1385 Jagiello, the Lithuanian Prince pledges to get baptized, and to fuse Lithuania and Poland into one country.
1386 Jagiello and his brothers get baptized. Skirgiello is baptized the second time, and Witold the third time (after the Teutonic Knights and Orthodox baptisms). Jagiello marries Jadwiga, and both are crowned in Cracow.
1386 Polish forces help Lithuanians to stop the Order entering Lithuania
1387 Jagiello, accompanied by Polish secular and church aristocracy goes to Lithuania, starts to baptize the country, and creates Catholic hierarchy. Jagiello grants to Lithuanian nobles their leases, and frees them from many duties.
1387 Jadwiga sends the expedition which reincorporates Red Ruthenia to Poland.
1390 Polish knights and Lithuanians defend Vilnius against the Order.
1399 Witold expedition to Moscow, which is headed to subordinate all Russian duchies, is supported by Polish forces.
1401 Vilnius-Radom Union gives Witold a life time authority over Great Lithuanian Duchy.
1404 Teutonic Knights for a ransom returns Ziemia Dobrzynska to Poland.
1409 Teutonic Knights Order declare a war on Poland.
1410 The great battle between Teutonic Knights and Polish-Lithuanian forces on the fields of Grunwald.
1411 The siege of Malbork, Teutonic Knights stronghold, and a peace treaty. The Order returns Dobrzyn to Poland and north-eastern Lithuania to Lithuania
1414 From the pope Poland receives a decree condemning the Order doctrine.
1414 -1423 The siege war with Teutonic Knights.
1420 Statutes of Mikolaj Traba orders clergy to stop of Hussitism incoming from Czech to Poland.
1424 Wielun Edict recognizes Huss teachings also as a crime against the state.
1425 Polish nobility recognizes a Prince Wladyslaw, son of Jagiello, as a next Polish king.
1430 Two facts come out: the plan to crown Witold and anti Polish agreement between an Emperor, an Order and future King of Lithuania.
1430 After the death of Witold, Jagiello sets Swidrygiello as a Great Prince of Lithuania. Swidrygiello is an escapee from Polish prison sentenced for collaboration with the Order. Polish magnates in protest capture Podolia.
1433 Gdansk is taken away from Teutonic Knights Order.
1438 Korczyn Confederation orders secular and church aristocracy to kill rebels acting against the king, and for spreading of "heresy".
1420-1505 Huss teaching spreads in Poland.
1440 King of Poland, Wladyslaw Warnenczyk accepts Hungarian crown.
1442 In the Czerwinsk Privilege, the king pledges oneself to not confiscate noble properties without a court verdict.
1443-1444 King sends Polish knights to Hungary, where he leads the army fights against Turks.
1454-1466 The last war with Order and a treaty in Torun.
1470, 1471 Ivan conquers Novogrod, which a year earlier joined Lithuania.
1471 Wladyslaw, a son of Wladyslaw Jagiello crowned as Czech king. A part of Polish army accompanies the king. Twelve thousand people army joins Casimir to fight Maciej Korwin for a Hungarian crown.
1482 Ivan enters Lithuania. A peace treaty in 1486.
1492 Dies King Casimir Jagiellonczyk. A crown council (bishops, castellanians, wojwodas and King Prussia representatives) and nobility debates on new king election.
1493 and 1496 Parliamentary sessions. Nobility, secular and church aristocracy and towns are ordered to pay taxes to the state.
1494 Base on peace treaty with Moscow, Lithuania admits Ivan as the owner of all Russian territories.
1495 After Janusz heiress death, King Olbracht incorporates Plock to Poland.
1496 A parliament session in Piotrkow. As a result of overseas grain demand, the nobility inreases cultivable areas and immobilizes peasants.
1496-1497 After secret meeting in Parczew King Jan Olbracht organizes and leads a Woloska Expedition to Moldavia, a member of anti-Jagiellonian coalition. The expedition purpose is unknown, possibly to put Jagiellonians on Moldavia throne, war against Turkey, or resettlement of Teutonic Knights Order. Forty thousands people expedition includes noble forces (so called "pospolite ruszenie"), recruited army, Order forces and Lithuanian army. The Mazovian forces heads Conrad III, the Prince of Czersk. Suceava, a capital of Moldavia is not taken. As result of incorrect organization, hunger, cold and partisan actions almost half of expedition forces are lost.
1500 Another Moscow action against Lithuania.
1501 After crowning, King Aleksander heads the army aimed to Lithuania, fights against Moscow Russia and obtains a six years peace treaty.
1503 Because of mismanagement of the crown properties and overspending on the overseas expeditions, the treasure is empty. Many magnates make new fortunes. Bishops own about 200 to 300 villages, secular magnates in Malopolska to 30 villages, and monasteries own up to 40 villages.
1504, 1505, 1506 During these parliamentary sessions a law and administrative reforms are introduced. From now a Parliament consist the king and nation representatives. The king and his advisors make a Senate. The nation is represented by deputies chosen at local elections. A Marshall heads the House of Commons. To become a law, parliamentary decisions must be confirmed by the king. The king executable branch consists his officers: starosts in cities and wojts on the leased lands. The Parliament to assemble each second year.
1504 Moscow attempts to capture Smolensk.
1505 At Radom parliamentary session a "Nihil novi" law prohibits the king to make laws without Senate and House of Commons approval.
1520 King Sigismund I forbids to bring Luther books to Poland under properties and banishment penalty.
1520 Other war with the Order. Prussia becomes a Brandenburg Duchy under the Polish superiority.
1523 Sigismund I orders death and estate loss punishment for a profession and propagating teachings of reformers.
1525 Peasant rebellion in King Prussia asks for a personal freedom, end of the serfdom, and a Protestant bible. The rebellion is abolished by joined forces of Lutheran Prussian prince and the forces of Warmia bishop.
1525 Prussian homage in Cracow.
1526 King goes to Gdansk. Here fourteen heads of Protestant rebellion are beheaded. Monasteries are returned to monks, and churches to priests.
1527 Parliament constitutes military-treasury reforms.
1540 Sigismund I forbids to send children to western Lutheran universities. Time of Jagiellonian University decline.
1543 At parliamentary session, the king is forced to withdraw the western countries travel decision.
1550 The parliament presents to the king the interim reforms program of the state, but not interested king pushes away the program to a later term.
1550 To receive permission from a primate to marry a non king origin Barbara Radziwill, Sigismund pledges to keep one religion in the country.
1551 Piotrkow Synod (a church court) presents sentences for reformation protectors.
1552 During a session in Piotrkow, parliament forces the king to suspend church courts.
1554 For favoring the reformation, bishop Czarnkowski orders three Poznan townsmen to be burned. Nobility frees prisoners.
1554 The first official dissident synod lets a regular activities of Calvinist Church in Poland.
1555 A Parliament keeps suspending of Catholic Church courts, and equals Protestants to Catholics.
1556 Sigismund August expedition to Livonia. The Order surrenders without fight.
1557 Sigismund August presents edict that forbids dissident propaganda. The same time a king cancels Catholic Church jurisdiction over Protestant issues.
1557-1558 For a financial contribution from King Prussia, Sigismunt August guarantees a freedom to Lutheranism.
1558 Another Moscow expansion. An army of Tsar Ivan enters Livonia starting Livonian Wars.
1562/1563 The Parliament introduces a state tax from tithes. The end of Catholic Church jurisdiction.
1564 Parczew Edict - Sigismund August orders immigrants who propagate other religions to leave the country. The order is enforced only against an anti-Trinitarians.
1566 The union of Livonia with Lithuania and Poland.
1566 Parliament reforms king properties, partially approved by King Sigimund August.
1569 Lublin Union - a union of all states belonging to Polish-Lithuanian the Commonwealth. Ukraine, Wolhynia and Podolia are incorporated to the Polish part of the Commonwealth.
1570 Sandomierz Agreement - an agreement between Czech Brothers, Calvinists and Lutherans. Young people are studying abroad. The Catholic Church opposes humanistic science as a sign of reformation.
1572 Sigismund August, the last representative of Jagiellonian dynasty dies.
1573 Warsaw Confederation sets rules for a peace for a time of interregnum. Broadens healing rules for religious disputes and asks for a peaceful existence of all religions.
1573 Election of King Henry Walezy. At the crowning time a king confirms a Warsaw Confederation.
1576 City of Gdansk announces its independence from Poland. Stephen Batory, a King conquers Gdansk.
1577 Tsar Ivan again captures Livonia. Polish expedition under hetman Zamoyski recovers Livonia, then sieges Moscow.
1582 A peace treaty with Tzar Ivan. The end of Livonian Wars.
1586 Stefan Batory calls for a war against Turkey (an Ottoman Empire), then dies.
1587 Election of King Sigismund III Waza. The war with Sweden, as Sigimund III tries to capture a Swedish throne.
1589 King Sigismund opposes the Parliament resolution of a majority rule in House of Commons.
1592 Parliament presses King Sigismund III Waza to deny his arrangements with Habsburgs.
1595 and 1600 Hetman Zamoyski enters Moldavia and removes Austrians calling for a war with Ottoman Empire.
1601, 1602 and 1605 Removal of Swedes from Livonia.
1606 Polish rowdy expedition, supported by church magnates to Moscow supports presumed Tzar Dimitr, a son of Ivan. After few years, the expedition is destroyed by a national insurection.
1610 Hetman Zolkiewski destructs Shuiskii Army, another pretender to the Russian throne.
1611 Sigismund III Waza conquers Smolensk. Because of his strict Catholicism and Jesuit protection, Sigismund looses a tzar election in Moscow.
1619 Peace treaty with Michail Romanow.
1620 Defeated battle around Cecora with Turks.
1621 Won battle around Chocim with Turks.
1626 The army of Swedish King Gustaw Adolph conquers King Prussia.
1629 Polish Army is moved to Ukraine.
1633 Army of Tzar Mikolaj occupies Smolensk.
1634 King Wladyslaw IV frees Smolensk, peace with Moscow Russia.
1635 Peace treaty with Sweden. Sweden returns King Prussia, but retains Livonia.
1635 Parliament removes Cosacs privileges, submits Cosacs under the control of Starosts. Hetman Koniecpolski Army is moved to Ukraine.
1648 Cosacs Insurrection commanded by Bogdan Chmielnicki. Defeat of the Polish Army at Zolte Wody.
1655-1600 A War with Sweden. John Casimir resigns his claims to Swedish crown. The peace treaty in Oliwa in 1600. John Casimir resigns Polish supremacy over King Prussia. From now Prussia is part of Brandenburg.

Sources