Archaeologists in Maastricht may have uncovered the skeleton of the famed French musketeer Charles de Batz de Castelmore d’Artagnan beneath the altar of St Peter and Paul Church.

The grave was discovered after part of the church floor subsided, prompting DNA testing to compare a jawbone with that of d’Artagnan’s descendants.

D’Artagnan, a real-life captain-lieutenant of Louis XIV’s Musketeers, was killed during the 1673 siege of Maastricht.

Additional clues at the site include a coin dated 1660 and a lead bullet fragment, supporting the historical context, NBC News has reported.

Church officials and archaeologists caution that while the evidence is promising, confirmation will require thorough testing.