"Conrad III (German: Konrad; Italian: Corrado; 1093 or 1094 – 15 February 1152) of the Hohenstaufen dynasty was from 1116 to 1120 Duke of Franconia, from ...
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1127 to 1135 anti-king of his predecessor Lothair III and from 1138 until his death in 1152 king in the Holy Roman Empire. He was the son of Duke Frederick I of Swabia and Agnes, a daughter of the Salian Emperor Henry IV." - (en.wikipedia.org 10.08.2021)
