Byzantium · Late 7th to early 8th century AD · Polače, Mljet, Dubrovnik-Neretva County, Croatia
Byzantine shipwreck off Croatia held record gold haul and an emperor's ring
The 7th or 8th-century ship that sank near Mljet carried more than 600 grams of gold, jewelled belt sets and a signet ring showing a Heraclian emperor.