The bronze tondo by Ciro Ferri depicts ‘The Beheading of St John the Baptist’. It was placed in the centre of the antependium of the marble altar in the Oratory of the Beheading in St John’s Co-Cathedral in 1688. It was commissioned in order to complete the refurbishment project of the said Oratory initiated by Grand Master Gregorio Carafa (1680-90).

The restoration was finished in 1998.