An ancient Roman wood and ivory throne has been unearthed at a dig in Herculaneum, Italian archaeologists said on Tuesday, hailing it as the most significant piece of wooden furniture ever discovered there.

The throne was found during an excavation in the Villa of the Papyri, the private house formerly belonging to Julius Caesar's father-in-law, Lucius Calpurnius Piso Caesoninus, built on the slope of Mount Vesuvius.

The name of the villa derives from the impressive library containing thousands of scrolls of papyrus discovered buried under meters (yards) of volcanic ash after the Vesuvius erupted on 24 August 79.