Prince Pierre of Monaco was born on December 5, 1895, and was a member of the Monegasque royal family. He was the son of Prince Louis II of Monaco and Princess Alice of Monaco. Pierre served as a prominent figure in Monaco's social and political life, contributing to the development of the principality. In 1920, he married Princess Charlotte of Monaco, who later became the Duchess of Valentinois. Together, they had two children, including Prince Rainier III of Monaco, who would later become the ruler of Monaco. Prince Pierre passed away on April 10, 1964.