King Håkon V of Norway reigned from 1299 to 1319. He was the son of King Magnus Lagabøte and became the first king of Norway to rule from the capital, Oslo. Håkon V is known for strengthening the monarchy and promoting trade and commerce in the region. During his reign, Håkon V worked to consolidate royal power and improve the legal system. He also focused on building fortifications and enhancing the defenses of Oslo. His efforts laid the groundwork for future developments in Norway, contributing to the country's stability and growth.