Gustaf V of Sweden was born on June 16, 1858, and became king in 1907, reigning until his death in 1950. He was the son of King Oscar II and Queen Sophia of Nassau. His reign saw significant changes in Sweden, including the expansion of democracy and social reforms. Gustaf V was known for his interest in sports, particularly tennis, and he even participated in the Olympic Games. He was also a supporter of the arts and culture, promoting various initiatives during his time as king. His reign is often remembered for its stability and modernization in Sweden.