One became a nationalist party associated with the supremacy of the papacy, while the other advocated the imperial authority of the Holy Roman Empire in Italy.
They originated in the early 12th century in Germany as the partisans of a struggle between Otto of Brunswick and Frederick II of Hohenstaufen for the throne of the Holy Roman Empire. Eventually, these parties lost their German significance. One became a nationalist party associated with the supremacy of the papacy, while the other advocated the imperial authority of the Holy Roman Empire in Italy. FTP, identify these two political parties that dominated medieval Italy and gave Dante Alighieri a hell of a time.
They originated in the early 12th century in Germany as the partisans of a struggle between Otto of Brunswick and Frederick II of Hohenstaufen for the throne of the Holy Roman Empire.
{Guelphs} and {Ghibellines}