Szukana fraza: [Abstract = The Silesian Piasts, being the descendants of king Bolesław Krzywousty's first\-born son, had the hereditary right to become Polish monarchs. Silesia could remain part of the Polish crown if only they had become the Polish kings, for it was only them \- and which Henryk Probus attempted in late XIII c.\- who could negotiate with the German and Czech rulers the unification of tributary Silesia with sovereign Polish Kingdom.]

Wyników: 1