Legendary captain who inspired 'The Three Musketeers' may have been found under church altar

The skeleton was found in front of an altar at St. Peter and Paul Church in Maastricht, the Netherlands, local officials said Wednesday.

Workers found the human remains in February after the floor caved in, Reuters reported.

The church has long been considered a possible burial site for d'Artagnan, according to officials.

Speaking to Reuters, archaeologist Wim Dijkman said the excavation has become a "top-level investigation."

He added, "We want to be absolutely certain - or as certain as ​possible - whether it is the famous musketeer, who was killed here near Maastricht."

Fox News Digital reached out to Dijkman for further comment.

Born in 1611, d'Artagnan served under King Louis XIV - known as the "Sun King" - and rose to captain of the Musketeers of the Guard, an elite military unit.

It's believed that d'Artagnan was buried nearby, as it would have been impractical to transport his body back to France in the summer heat.

Jos Valke, a deacon of the church, told Reuters that additional clues also pointed to d'Artagnan.

These included a coin from 1660 and a fragment of a lead bullet near the burial.

Valke added, "When you add it all up, then, it seems plausible to us. But of course, nothing ​is certain yet."

Dumas published "The Three Musketeers" in serial form beginning in May 1844, immortalizing d'Artagnan in fiction. 

The discovery is one of many significant archaeological finds in the Netherlands in recent years.

Reuters contributed reporting.