Conrad III., founder of the Hohenstaufen dynasty; elected Emperor of Germany in 1138; had Henry the Proud, as head of the German Guelfs, for rival; crushed him at Weinsberg; joined Louis VII. of France on a third crusade, and returning, overthrew the Guelfs again, leaving Barbarossa as his heir; (d. 1152).
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Conrad II. * Conrad of Thüringia