Monaco succession crisis of 1918

A succession crisis arose in the Principality of Monaco in 1918 because France objected to the prospect of a German national inheriting the Monegasque throne. Prince Albert I had only one legitimate child, the Hereditary Prince Louis, then heir apparent to the principality. As World War I drew to a close, Prince Louis, at the age of forty-eight, remained without legitimate issue, unmarried, and unbetrothed.