King Magnus II of Sweden, also known as Magnus Ladulås, reigned from 1275 to 1290. He is best known for his efforts to strengthen the Swedish monarchy and centralize power. Magnus II implemented various reforms that improved the administration of the kingdom and promoted trade, contributing to Sweden's economic development during the Middle Ages. Magnus II was also notable for his military campaigns against neighboring territories, including Finland and Norway. His reign marked a period of relative stability and growth, laying the groundwork for future Swedish kings. After his death, he was succeeded by his son, Birger Magnusson.