Viking kings were leaders of the Norse people during the Viking Age, which lasted from about 793 to 1066 AD. They ruled over various territories in Scandinavia, including modern-day Norway, Sweden, and Denmark. These kings often led their people in raids and explorations, expanding their influence across Europe and beyond. Many Viking kings, such as Harald Fairhair and Cnut the Great, are known for uniting tribes and establishing kingdoms. They played significant roles in trade, culture, and the spread of Norse mythology. Their legacies continue to be studied and celebrated in modern history and literature.