Formentera (Island)

First people, who settled on Formentera, were the Carthaginians, later the Romans came there. Often the island lost its complete population, for example after the Vandals came there. In the middle ages Arabs governed the balearic island, then Catalans took over the island, Formentera became part of the new kingdom of Mallorca. Later that kingdom became a part of Spain. Source: https://simple.wikipedia.org/wiki/Formentera