The Republic of Ragusa was a maritime republic centered on the city of Dubrovnik (Ragusa in Italian, German and Latin, Raguse in French) in Dalmatia (today in southernmost Croatia) that existed from 1358 to 1808. It reached its commercial peak in the 15th and the 16th centuries, before being conquered by Napoleon's French Empire and formally annexed by the Napoleonic Kingdom of Italy in 1808. It had a population of about 30,000 people, out of whom 5,000 lived within the city walls. Its motto was "Non bene pro toto libertas venditur auro", which translated from Latin means "Liberty is not well sold for all the gold".NamesOriginally named Communitas Ragusina, in the 14th century it was renamed Respublica Ragusina, first mentioned in 1385. In Italian it is called Repubblica di Ragusa; in Croatian it is called Dubrovačka Republika.The Slavic name Dubrovnik is derived from the word dubrava, an oak grove; by a strange folk etymology, the Turks have corrupted this into Dobro-Venedik, meaning "Good-Venice". It came into use alongside Ragusa as early as the 14th century. The Latin, Italian and Dalmatian name Ragusa derives its name from Lausa ; it was later altered in Rausium, Rhagusium or Ragusium or Rausia and finally into Ragusa. The official change of name from Ragusa to Dubrovnik came into effect during Austria-Hungary. It is known in historiography as the Republic of Ragusa.