King Fredrik I of Sweden reigned from 1720 to 1751. He was born on July 26, 1676, in Schleswig, which is now part of Germany. Fredrik I became king after the death of Charles XII and was known for his efforts to strengthen the monarchy and improve the economy. His reign was marked by relative peace and stability in Sweden. During his rule, Fredrik I focused on cultural development and the arts, promoting the Swedish Academy and supporting various artistic endeavors. He was married to Louise Ulrika of Prussia, and they had several children, including Adolf Frederick, who later became king.