Complex sentence: Charlotte was titled Duchess of Valentinois by Albert I on May 20,1919, and on 1 August, 1922 was designated Hereditary Princess of Monaco, after Louis II's accession on June 22.
Split into simpler sentences: Charlotte was titled Duchess of Valentinois by Albert I on May 20,1919. And on 1 August, 1922 was designated Hereditary Princess of Monaco, after Louis II's accession on June 22.