Archaeological carved slabs of the Langobard art in churches of Peligna Valley and Spoleto (Italy): provenance of the stones

► We investigated the provenance of ornamental carved stones of the Langobard art. ► A multi-analytical approach was used for the complete characterization of the stones. ► The stones here studied are limestone and marble. ► The value of the stones highlights the different prestige of the two communities. ► The comparison data between artefacts and geological samples proved the provenance.