Conrad (born Feb. 12, 1074—died July 27, 1101, Florence) was the duke of Lower Lorraine (1076–89), the eldest son of the emperor Henry IV, who had him crowned king of the Germans in 1087 in an attempt to confirm the imperial succession in the Salian line. During Henry’s struggles with the papacy, however, Conrad turned against his father, joined the papal party, and was crowned king of Italy (1093). In return for fealty, Pope Urban II promised him the imperial crown (1095). Conrad never succeeded in developing a sizable following, was deposed by his father in favour of his brother Henry V (1099), and died two years later, discredited as a rebel son.