Sandomierz in the context of "Bolesław II of Masovia"

The Vistula (/ˈvɪstjʊlə/; Polish: Wisła [ˈviswa] ) is the longest river in Poland and the ninth-longest in Europe, at 1,047 kilometres (651 miles) in length. Its drainage basin, extending into three other countries apart from Poland, covers 193,960 km (74,890 sq mi), of which 168,868 km (65,200 sq mi) is in Poland.

The Vistula rises at Barania Góra in the south of Poland, 1,220 meters (4,000 ft) above sea level in the Silesian Beskids (western part of Carpathian Mountains), where it begins with the White Little Vistula (Biała Wisełka) and the Black Little Vistula (Czarna Wisełka). It flows through Poland's largest cities, including Kraków, Sandomierz, Warsaw, Płock, Włocławek, Toruń, Bydgoszcz, Świecie, Grudziądz, Tczew and Gdańsk. It empties into the Vistula Lagoon (Zalew Wiślany) or directly into the Gdańsk Bay of the Baltic Sea with a delta of six main branches (Leniwka, Przekop, Śmiała Wisła, Martwa Wisła, Nogat and Szkarpawa).

Casimir II the Just (Polish: Kazimierz II Sprawiedliwy; 28 October 1138 – 5 May 1194) was Duke of Wiślica in Lesser Poland from 1166 to 1173, and Duke of Sandomierz from 1173 onward. In 1177, he became ruler of the Polish Seniorate Province at Kraków and thereby High Duke of Poland — a position he held until his death, though briefly interrupted by his elder brother and predecessor, Mieszko III.

In 1186, Casimir inherited the Duchy of Masovia from his nephew Leszek, becoming the progenitor of the Masovian branch of the royal Piast dynasty and great-grandfather of the later Polish king Władysław I the Elbow-high. The honorific title "the Just" was not contemporary and first appeared in the 16th century.

Leszek II the Black (c. 1241 – 30 September 1288), was a Polish prince of the House of Piast, Duke of Sieradz since 1261, Duke of Łęczyca since 1267, Duke of Inowrocław in the years 1273-1278, Duke of Sandomierz and High Duke of Poland from 1279 until his death.

In the history of Poland, a royal city or royal town (Polish: miasto królewskie) was an urban settlement within the crown lands (Polish: królewszczyzna).

The most influential royal cities enjoyed voting rights during the free election period in Poland (1572–1791). These cities were Gdańsk, Warsaw, Kraków, Poznań, Lwów, Wilno, Toruń, Lublin, Kamieniec and Elbląg. Other important royal cities included Gniezno (ecclesiastical capital of Poland and former capital of early medieval Poland), Płock (former capital of medieval Poland), Piotrków (second most important political center of Poland in the early and mid-16th century as the main location of the Sejm, and then the main Crown Tribunal location alongside Lublin, thus one of the two judiciary capitals of Poland), Grodno (de facto capital of the Polish–Lithuanian Commonwealth in the 1580s and then the general sejm location alongside Warsaw), Bydgoszcz and Kalisz (temporary locations of the Crown Tribunal), and Sandomierz, Przemyśl, Kazimierz.

Bolesław III Wrymouth (Polish: Bolesław III Krzywousty; 20 August 1086 – 28 October 1138), also known as Boleslaus the Wry-mouthed, was the duke of Lesser Poland, Silesia and Sandomierz between 1102 and 1107 and over the whole of Poland between 1107 and 1138. He was the only child of Duke Władysław I Herman and his first wife, Judith of Bohemia.

Bolesław began to rule in the last decade of the 11th century, when the central government in Poland was significantly weakened. Władysław I Herman fell under the political dependence of the Count palatine Sieciech, who became the de facto ruler of the country. Backed by their father, Boleslaw and his half-brother Zbigniew finally expelled Sieciech from the country in 1101, after several years of fighting. After the death of Władysław I Herman in 1102, two independent states were created, ruled by Bolesław and Zbigniew.

Michał Hieronim Krasiński (1712 – May 25, 1784) was a Polish noble known for being one of the leaders of Bar Confederation (1768–1772). He was cupbearer of Stężyca, podkomorzy of Różan, starosta of Opiniogóra, and envoy to many Sejms.

He was a captain in August III army. He was a member of parliament in 1748 and 1750 as a deputate from Sandomierz voivodeship and in 1756, 1758 and 1760.