Duchy of Opole and Racibórz
... that Duchy of Opole and Racibórz, one of many Duchies of Silesia, was created in the 13th century, split by the end of it, and recreated in the 16th by the last Piast?
... that <b id="mwDVk"><a href="./Duchy_of_Opole_and_Racibórz" id="mwDVo" rel="mw:WikiLink" title="Duchy of Opole and Racibórz">Duchy of Opole and Racibórz</a></b>, one of many <a href="./Duchies_of_Silesia" id="mwDVs" rel="mw:WikiLink" title="Duchies of Silesia">Duchies of Silesia</a>, was created in the 13th century, split by the end of it, and recreated in the 16th by the <a href="./Jan_II_the_Good" id="mwDVw" rel="mw:WikiLink" title="Jan II the Good">last Piast</a>?