Sandomierz Land in the context of Pilica (river)

The Duchy of Wiślica was a district principality and a fiefdom within the Kingdom of Poland. It was formed in 1166 from the territories of the Duchy of Sandomierz, following its fragmentation onto three parts. The state was ruled by Casimir II the Just, and it existed until 1173, when Casimir had assumed the throne of the Duchy of Sandomierz, uniting two states together. Its capital was Wiślica and it was located in the southern Sandomierz Land in the southeastern corner of the Kingdom of Poland. The state was later shortly reestablished in 1230 by Grzymisława of Łuck who ruled it as a regent in the name of her son, Bolesław V the Chaste. In 1234, they had become rulers of the whole Duchy of Sandomierz, with that year being the last mention of the duchy in the documents.

The Duchy of Sandomierz was a district principality and a fiefdom of the Kingdom of Poland. It was formed in 1138 from the territories of the Kingdom of Poland, following its fragmentation, that was started by the testament of Bolesław III Wrymouth. The Duchy existed until 1320 when it was incorporated into the Kingdom of Poland. Its capital was the city of Sandomierz. The territory was centred around Sandomierz Land in the southeastern corner of Poland, between the rivers of Pilica, Vistula, San, and Dunajec.
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