Casimir III the Great in the context of "Kingdom of Galicia–Volhynia"

The Crown of the Kingdom of Poland (Polish: Korona Królestwa Polskiego; Latin: Corona Regni Poloniae) was a political and legal concept formed in the 14th century in the Kingdom of Poland, assuming unity, indivisibility and continuity of the state. Under this idea, the state was no longer seen as the patrimonial property of the monarch or dynasty, but became a common good of the political community of the kingdom. This notion allowed the state to maintain stability even during periods of interregnum and paved the way for a unique political system in Poland, characterized by a noble-based parliament and the free election of the monarch. Additionally, the concept of the Crown extended beyond existing borders, asserting that previously lost territories still rightfully belonged to it. The term Crown of the Kingdom of Poland also referred to all the lands under the rule of the Polish king. This meaning became especially significant after the union with the Grand Duchy of Lithuania, when it began to be commonly used to denote the Polish part of the joint Polish-Lithuanian Commonwealth.

The idea of the Crown in Central Europe first appeared in Bohemia and Hungary, from where the model was taken by kings Ladislaus the Short and Casimir III the Great to strengthen their power. During the reign of Louis the Great in Poland, who spent most of his time in Hungary, as well as during the interregnum following his death and the regency during the minority of his daughter Jadwiga, the idea was adopted by the lords of the kingdom to emphasize their own role as co-responsible for the state.

A decree is a legal proclamation, usually issued by a head of state, judge, royal figure, or other relevant authorities, according to certain procedures. These procedures are usually defined by the constitution, Legislative laws, or customary laws of a government.

Lviv (/ləˈviːv/ lə-VEEV or /ləˈviːf/ lə-VEEF; Ukrainian: Львів [ˈlʲviu̯] ; Polish: Lwów [ˈlvuf] ; see below for other names) is the largest city in western Ukraine, as well as the fifth-largest city in Ukraine, officially with a population of 723,403 (2025 estimate). It serves as the administrative centre of Lviv Oblast and Lviv Raion, and is one of the main cultural centres of Ukraine. Lviv also hosts the administration of Lviv urban hromada. It was named after Leo I of Galicia, the eldest son of Daniel, King of Ruthenia.

Lviv (then Lwów) emerged as the centre of the historical regions of Red Ruthenia and Galicia in the 14th century, superseding Halych, Chełm, Belz, and Przemyśl. It was the capital of the Kingdom of Galicia–Volhynia from 1272 to 1340, when it went to King Casimir III the Great of Poland in a war of succession. In 1356, Casimir the Great granted it town rights. From 1434, it was the regional capital of the Ruthenian Voivodeship in the Kingdom of Poland. In 1772, after the First Partition of Poland, the city became the capital of the Habsburg semi-autonomous Polish-dominated Kingdom of Galicia and Lodomeria. From 1918, between the wars, the city was the centre of the Lwów Voivodeship in the Second Polish Republic. There it flourished in culture, industry and academia such as the Lwów School of Mathematics, the Lwów Historical School (Polish: lwowska szkoła historyczna) and the Lwów School of Economics. After the German-Soviet invasion of Poland in 1939, the massacre of Lwów professors took place, and Lwów was eventually annexed by the Soviet Union.

Poland was ruled at various times either by dukes and princes (10th to 14th centuries) or by kings (11th to 18th centuries). During the latter period, a tradition of free election of monarchs made it a uniquely electable position in Europe (16th to 18th centuries).

The first Polish ruler whose existence is not debatable was Duke Mieszko I, who adopted Christianity under the authority of Rome in the year 966. He was succeeded by his son, Bolesław I the Brave, who greatly expanded the boundaries of the Polish state and ruled as the first king in 1025. The following centuries gave rise to the mighty Piast dynasty, consisting of both kings such as Mieszko II Lambert, Przemysł II or Władysław I the Elbow-high and dukes like Bolesław III Wrymouth. The dynasty's rule over Poland ceased with the death of Casimir III the Great in 1370. In the same year, the Capetian House of Anjou became the ruling house with Louis I as king of both Poland and Hungary. His daughter, Jadwiga, later married Jogaila, the pagan Grand Duke of Lithuania, who in 1386 was baptized and crowned as Władysław II Jagiełło, thus creating the Jagiellonian dynasty and a personal union between Poland and Lithuania.

The House of Piast was the first historical ruling dynasty of Poland. The first documented Polish monarch was Duke Mieszko I (c. 960–992). The Piasts' royal rule in Poland ended in 1370 with the death of King Casimir III the Great.

Branches of the Piast dynasty continued to rule in the Duchy of Masovia (until 1526) and in the Duchies of Silesia until the last male Silesian Piast died in 1675. The Piasts intermarried with several noble lines of Europe, and possessed numerous titles, some within the Holy Roman Empire. The Jagiellonian kings ruling after the death of Casimir IV of Poland were also descended in the female line from Casimir III's daughter.

Ashkenazi Jews (/ˌɑːʃkəˈnɑːzi, ˌæʃ-/ A(H)SH-kə-NAH-zee; also known as Ashkenazic Jews) Ashkenazis or Ashkenazim form a distinct subgroup of the Jewish diaspora that emerged in the Holy Roman Empire in the Early Middle Ages, originating from the Jewish communities who lived in the 10th century in the Rhineland valley and in neighbouring France before migrating eastward after the Crusades. Facing persecution in Western Europe, particularly following the Black Death in the 14th century, the bulk of the Ashkenazi Jews migrated to the Kingdom of Poland, at the encouragement of Casimir III the Great and his successors, making Poland the main centre of Ashkenazi Jewry until the Holocaust.

They traditionally follow the German rite synagogue ritual and speak Yiddish, an offshoot of Middle High German written in a variety of the Hebrew script, with significant Hebrew, Aramaic and Slavic influence. Hebrew, on the other hand, was primarily used as a literary and sacred language until its 20th-century revival as a common language in Israel. Ashkenazim adapted their traditions to Europe, and underwent a transformation in their interpretation of Judaism. In the late 18th and 19th centuries, Jews who remained in or returned to historical German lands experienced a cultural reorientation. Under the influence of the Haskalah and the struggle for emancipation, as well as the intellectual and cultural ferment in urban centres, some gradually abandoned Yiddish in favor of German and developed new forms of Jewish religious life and cultural identity. Throughout the centuries, Ashkenazim made significant contributions to Europe's philosophy, scholarship, literature, art, music, and science.

The szlachta (Polish pronunciation: [ˈʂlaxta] ; Lithuanian: šlėkta; lit. 'nobility') , the nobles, were the noble estate of the realm in the Kingdom of Poland, the Grand Duchy of Lithuania, and the Polish–Lithuanian Commonwealth. It was the dominating social class in the Kingdom of Poland and the Polish-Lithuanian Commonwealth, which was exercising political rights and power. Szlachta as a class differed substantially from the feudal nobility of Western Europe. The estate was officially abolished in 1921 by the March Constitution.

The origins of the szlachta are obscure and the subject of several theories. The szlachta secured substantial and increasing political power and rights throughout its history, beginning with the reign of King Casimir III the Great between 1333 and 1370 in the Kingdom of Poland until the decline and end of the Polish–Lithuanian Commonwealth in the late 18th century. Apart from providing officers for the army, its chief civic obligations included electing the monarch and filling honorary and advisory roles at court that would later evolve into the upper legislative chamber, the Senate. The szlachta electorate also took part in the government of the Commonwealth via the lower legislative chamber of the Sejm (bicameral national parliament), composed of representatives elected at local sejmiks (local szlachta assemblies). Sejmiks performed various governmental functions at local levels, such as appointing officials and overseeing judicial and financial governance, including tax-raising. The szlachta assumed various governing positions, including voivode, marshal of voivodeship, castellan, and starosta.