“I have lost D’Artagnan, in whom I had every confidence,” wrote King Louis XIV to his Queen Consort, Maria Theresa of Spain, after he received news that his right-hand man, Charles de Batz de Castelmore, the Earl of Artagnan, was killed during the siege of Maastricht in the summer of 1673.D’Artagnan would become famous thanks to an 1844 serialized novel by Alexandre Dumas, in which he was instead a young Gascon peasant who becomes a friend to Athos, Porthos, and Aramis in the King's Musketeers and saves King Louis VIII from various intrigues. It was such a hit that it made Un pour tous, tous pour un (one for all, all for one) part of the worldwide lexicon and it's been turned into dozens of films, including its greatest, Richard Lester's 1974 version.