One of these provinces, Silesia was given to the Ladislaus the Exile the oldest son of Boleslaus, and subsequenly divided among his descendants and successors, until they died out in 1675
Upto 1290 Cieszyn belonged to the Duchy of Raciborz
See also:
Duchy of Silesia
Duchies of Lower Silesia
Duchy of Wroclaw
1327/1335 Duchy of Wroclaw falls to BohemiaDuchy of Bierutow
Duchy of Brzeg
Duchy of Chojnow
Duchy of Glogow
Duchy of Jawor
County of Klodzko
Duchy of Korzuchow
Duchy of Krosno
Duchy of Legnica
Duchy of Lubin
Duchy of Lwowek
Duchy of Olesnica
Duchy of Olawa
Duchy of Scinawa
Duchy of Swidnica
Duchy of Wolow
Duchy of Ziebice
Duchy of Zagan
Duchies of Upper Silesia
Duchy of Opole
Duchy of Bielsko
Duchy of Bytom
Duchy of Cieszyn
in 1653 Duchy of Cieszyn transfered to the Habsburg domainsDuchy of Gliwice
Duchy of Glogowek
Duchy of Karniow
Duchy of Kozielsk
Duchy of Namyslow
Duchy of Niemodlin
Eclessiatical Duchy of Nysa
Duchy of Opava
Duchy of Oswiecim
Duchy of Raciborz
Duchy of Radziejow
Duchy of Strzelce
Duchy of Toszek
Duchy of Wielun
Duchy of Zator