The Three Musketeers is a musical with a book by William Anthony McGuire, lyrics by Clifford Grey and P. G. Wodehouse, and music by Rudolf Friml. It is based on the classic 1844 novel by Alexandre Dumas, père. Set in France and England in 1626, it recounts the adventures of a young man named d'Artagnan after he leaves home to become a Musketeer of the Guard. The three men of the title are his friends Athos, Porthos and Aramis.
The original 1928 production on Broadway, and a 1930 West End run, both starring Dennis King as d'Artagnan, were successful, but a 1984 attempt at a much-revised Broadway revival flopped.
In early 17th century France, the poor but virile d'Artagnan travels to Paris to join the Musketeers (the King's bodyguard). He meets and falls in love with Lady Constance Bonacieux, a lady-in-waiting to Queen Anne. Meanwhile, Cardinal Richelieu learns that the Queen has given a diamond heart brooch, which was a present to her from the King, as a token of love to the Duke of Buckingham. Richelieu suggests that the King ask the Queen to wear it at a planned royal gala. Richelieu dispatches the Comte de Rochefort and Milady de Winter to London to recover the gem, which he plans to unveil at the gala in order to reveal that the Queen has been unfaithful.