(or Spalatum in Latin). The Palace was built as a massive structure, much like a Roman military fortress. The palace and the city of Spalatum which formed its surroundings were at times inhabited by a population as large as 8,000 to 10,000 people.

Between 475 and 480, the Palace hosted Flavius Julius Nepos, the last recognised Emperor of the Western Roman Empire. Salona was lost to the Ostrogothic Kingdom