(Polish: Księstwo opolskie; Czech: Opolské knížectví; German: Herzogtum Oppeln) was one of the duchies of Silesia ruled by the branch of Polish Piast dynasty...

Bolesław I, died 8 December 1201. Early in 1202 Henry's uncle, Duke Mieszko IV Tanglefoot of Upper Silesia, attacked and took the Duchy of Opole (Oppeln), which...

Thuringia from 1221. Upon the death of his cousin Duke Casimir I of Opole, son of Mieszko I Tanglefoot, in 1230, he acted as guardian of his minor nephews...

  Bolesław I   Jarosław   Mieszko I 1177-1185   Bolesław I   Jarosław   Mieszko I   Konrad 1185-1201   Bolesław I   Jarosław   Mieszko I 1201-1202   Henry I   Mieszko...

Opole (Polish: [ɔˈpɔlɛ] ; German: Oppeln [ˈɔpl̩n] ; Silesian: Ôpole) is a city located in southern Poland on the Oder River and the historical capital...

Opole and Racibórz (Polish: Księstwo opolsko-raciborskie, German: Herzogtum Oppeln und Ratibor) was one of the numerous Duchies of Silesia ruled by the Silesian...

Silesia were those of Greater Moravia and Bohemia. In the 10th century, Mieszko I incorporated Silesia into Civitas Schinesghe, a Polish state. It remained...

in 990, the first Polish state was created by Duke Mieszko I, and then expanded by king Boleslaw I at the beginning of the 11th century. He established...

duke Mieszko I of the Polans had conquered large parts of Silesia. From the Middle Silesia fortress of Niemcza, his son and successor Bolesław I the Brave...

were Greater Moravia and Bohemia. In the 10th century, the Polish ruler Mieszko I of the Piast dynasty incorporated Silesia into the newly established Polish...