Magnus IV of Norway, also known as Magnus the Blind, was a king who ruled from 1130 to 1135. He was the son of Sigurd I of Norway and became king during a turbulent period marked by civil wars and power struggles among rival factions. His reign was characterized by challenges to his authority and conflicts with other claimants to the throne. Magnus IV's rule ended when he was defeated and killed in battle in 1135. His death led to the rise of Sigurd II, another claimant, further intensifying the civil strife in Norway. Magnus IV's brief reign is often remembered for its instability and the ongoing conflicts that plagued the kingdom.