Greek tomb at Amphipolis is 'important discovery'
Archaeologists unearthing a burial site at Amphipolis in northern Greece have made an "extremely important find", says Greek PM Antonis Samaras.
Experts believe the tomb belonged to an important figure dating back to the last quarter of the Fourth Century BC.
Lead archaeologist Katerina Peristeri said it certainly dated from after the death of Alexander the Great.
The burial mound is 497m (1,600ft) long and constructed with marble imported from the nearby island of Thassos and there are suggestions it was built by the renowned architect, Dinocrates, who was a friend of Alexander's.
Alexander's widow Roxana and their son Alexander were murdered in 311BC by Cassander, who came to the fore after Alexander the Great's death in Babylon in 323BC.
A coin from Kassander (Cassander):
Kassander Copper Horseman
Head of Herakles facing right wearing lion skin
Horseman facing right, possibly Alexander on his horse Bucephalus
Greek text, "King Kassander"
Bronze, 20mm, 6.51gm, struck BC 306-297 in Pella or Amphipolis