Rainier Iii

(born May 31, 1923, Monaco—died April 6, 2005, Monaco) Prince of Monaco (1949–2005), 31st in a line of hereditary rulers. He intensified, expanded, and diversified Monaco's enterprises, including its industry.

Through land reclamation from the sea, he expanded the principality's territory by one-fifth. His most significant political reform was the promulgation of a new constitution, based on modern principles without repudiating tradition. His wedding to Grace Kelly in 1956 attracted worldwide attention.