Emperor Conrad III was the Holy Roman Emperor from 1138 until his death in 1152. He was a member of the Staufer dynasty and is known for his efforts to strengthen the empire and expand its territories. His reign was marked by conflicts with the Welf family and involvement in the Second Crusade. Conrad III faced numerous challenges, including internal strife and external threats. Despite his military campaigns, he struggled to maintain control over the diverse regions of the empire. His legacy includes the establishment of a more centralized authority, which would influence future emperors in the Holy Roman Empire.