Thousands of flag-waving Greeks protested on Monday at the historic town of Vergina against the Prespes deal between Greece and FYROM on the naming dispute.
Despite earlier warnings that the rally would be cancelled due to bad weather, people from all over northern Greece participated, demanding that the agreement struck last month between Athens and Skopje is cancelled.
The town of Vergina is best known as the site of ancient Aigai, the first capital of Macedon.
It was there when in 336 BC Philip II was assassinated in the theater and Alexander the Great was proclaimed king.
The ancient site was discovered in 1976 and excavated under the leadership of archaeologist Manolis Andronikos.
The excavation unearthed the burial sites of many kings of Macedon, including the tomb of Philip II, father of Alexander the Great, which, unlike so many other tombs, had not been disturbed or looted.