If you like The Three Musketeers I would recommend Arturo Pérez-Reverte's Captain Alatriste books. They recount the adventures of a Spanish swordsman living in the 17th century in the service of King Philip IV, during the Eighty Years War. It even has some of the same historical characters like the Duke of Buckingham. It's Spanish rather than French swashbuckling.
There are six or seven books in the series.
http://www.amazon.com/Captain-Alatri...3797964&sr=1-6