King Canute IV, also known as Canute the Holy, was a Danish king who ruled from 1080 to 1086. He was a member of the House of Knýtlinga and is remembered for his attempts to strengthen the church and promote Christianity in Denmark. His reign was marked by efforts to consolidate power and improve the welfare of his subjects. Canute IV was canonized as a saint after his death, largely due to his pious life and martyrdom. He was killed in 1086 during a rebellion against his rule. His legacy continues to influence Danish history and the Christian faith in the region.