In accordance with the last will and testament of Poland's Duke Bolesław III Wrymouth, Poland was upon his death divided into 4-5 hereditary provinces distributed among his sons, and a royal province of Kraków reserved for the eldest, who was to be High Duke of all Poland. This was known as the fragmentation of Poland.
One of these provinces, Silesia, was granted to Bolesław III's eldest son, Władysław II the Exile, and was subsequently divided among his sons Boleslaus I the Long (Wrocław/Lower Silesia), Mieszko I Tanglefoot (Racibórz/Upper Silesia) and Konrad Spindleshanks (Głogów). After Konrads death Głogów was united with the Duchy of Wroclaw/Lower Silesia. In 1241 the Duchy of Lower Silesia was divided into the Duchies of Wrocław, Legnica and Głogów; Upper Silesia was divided into the Duchies of Cieszyn, Opole and Racibórz. In 1340 the Duchy of Racibórz was united with Opava, a Bohemian fief. At the beginning of the 14th century 14 independent Duchies existed in Silesia: Brzeg, Wroclaw, Świdnica, Jawor, Ziębice, Głogów, Ścinawa, Zagan and Oels in Lower Silesia; Koźle, Cieszyn, Bytom, Niemodlin, Opole, Strzelce, Racibórz and Opava in Upper Silesia and the eclessiatical duchy of Nysa. Between 1327 and 1329 most dukes accepted the overlordship of Bohemian king John of Bohemia, who acquired the right of succession for all of these duchies. In the coming centuries all branches of the Silesian Piasts died out, and with the dead of George William, Duke of Liegnitz the dynasty ceased to exist.
Sovereign Duchess Agnieska Zatorska of Wadowice. Born 1477-Died 1505. Married to Jan Kobierzycki of Tworkow and Kobierzyn, with one male heir. They were the last of the Piast Dynasty to rule Wadowice. Despite the sale of Wadowice to the King of Poland; to insure his armorial protection of the region; Wadowice continued to be torn by wars for another 300 years.
