Prince Louis II of Monaco was the ruler of the Principality of Monaco from 1922 until his death in 1949. Born on July 4, 1870, he was the son of Prince Albert I of Monaco and Princess Mary Victoria of Monaco. Louis II was known for his interest in sports, particularly in yachting, and he represented Monaco in the 1900 Summer Olympics. During his reign, Louis II focused on modernizing Monaco and improving its economy. He established the Monaco Grand Prix, which became a significant event in the world of motorsport. His leadership helped to solidify Monaco's status as a glamorous destination for tourists and the wealthy.