 Nyorera kupfuurira kweiyi ndima - Mukutanga kwezana ramakore rechi13 zvisungo zveSilesian Piasts neyakavakidzana neHoly Roman Empire yakakura yakasimba sezvo maduke akati wandei akaroora vana vevakuru veGerman. Yakasimudzirwa naDuke weZasi Silesian Henry I ane ndebvu, kubva 1230 zvakare regent pamusoro peUpper Silesia yevanakomana vadiki vehama yake yekupedzisira Duke Casimir I weOpole, zvikamu zvikuru zvenyika dzeSilesian zvakagadziriswa nevatorwa veGerman mukufamba kwe Ostsiedlung, vachigadzira maguta mazhinji maererano nemutemo weguta reGerman. Zvirongwa zvokubatanidzazve Silesia zvakaputsika pakapinda vaMongol muPolanduye rufu rwaDuke Henry II the Pious pa1241 Hondo yeLegnica. Upper Silesia yakaparadzaniswazve parufu rwaDuke Władysław Opolski muna 1281 kuva madunhu eBytom, Opole, Racibórz neCieszyn. Munenge muna 1269 Duchy yeOpava yakavambwa munharaunda yeMoravia, yaitongwa naPremyslid duke Nicholas I, ane vazukuru vakagara nhaka yeDuke yeRacibórz muna 1336. Sezvo vakatonga madunhu maviri aya vari pamwe chete, Opava yakakura ikava nharaunda yeUpper Silesian. 