King Gustaf V of Sweden reigned from 1907 until his death in 1950. He was born on June 16, 1858, and was the son of King Oscar II. Gustaf V was known for his interest in sports, particularly tennis, and he played a significant role in promoting athletics in Sweden. His reign saw significant political changes, including the rise of democracy and the expansion of social welfare. During his time as king, Gustaf V navigated Sweden through both World Wars, maintaining a policy of neutrality. He was also involved in various cultural and charitable activities, supporting the arts and education. His legacy includes a modernized monarchy that adapted to the changing political landscape of the 20th century.