 Nyora kupfuurira kweiyi ndima - Iyo iri munzvimbo yenhoroondo yeUpper Silesia, padyo nemuganhu neLesser Poland. Maererano nengano, nhare yokuSilesian yaiva pagomo riri pedyo reGrojec yakaparadzwa panguva yokupinda kwevaMongol muPolandmuna 1241, pashure pacho vagari vakatamira kunzvimbo yazvino. Kunyange zvakadaro, musha wacho wakatanga kutaurwa nezvawo muna 1206 mubhuku rakanyorwa naBishop Fulko wokuKraków. Yakagamuchira kodzero dzemisika kubva kuUpper Silesian Dukes yeOpole, kodzero dzeguta dzakasimbiswa naDuke Bernard weNiemodlin muna 1454. 