King Eric of Denmark, also known as Eric IV, ruled from 1241 to 1250. He was the son of King Abel and became king after the death of his brother, King Christopher I. His reign was marked by conflicts with the nobility and struggles to maintain control over the kingdom. During his rule, Eric sought to strengthen the monarchy and improve the administration of justice. However, his efforts faced resistance, leading to a turbulent period in Danish history. He was eventually deposed and died in 1250, leaving a legacy of both ambition and strife in the Danish monarchy.