People across Europe were enraptured when the potential bones of the soldier Count d’Artagnan — the inspiration for the legendary fourth musketeer from Alexandre Dumas’ iconic 1844 novel, “The Three Musketeers” — were unearthed in the Netherlands in March. But genetic testing to prove the bones belong to d’Artagnan has run into several problems that could make getting a definitive answer difficult.Where were these bones found? The completed skel…