History of the Cyclades 6th century BC). The Persians tried to take them during their attempts to conquer Greece. Then they entered into Athens' orbit with the Delian Leagues. The Hellenistic kingdoms disputed their status while Delos became a great commercial power. Commercial activities were pursued during the Roman and Byzantine Empires, yet they were sufficiently prosperous as to attract pirates' attention. The participants of the Fourth Crusade divided the Byzantine Empire among themselves and the Cyclades entered the Venetian orbit. Western feudal lords created a certain number of fiefs, of which the Duchy of Naxos was the most important. The Duchy was conquered
Cyclades islands are uninhabited. Ermoupoli on Syros is the chief town and administrative center of the former prefecture. The islands are peaks of a submerged mountainous terrain, with the exception of two volcanic islands, Milos and Santorini. The climate is generally dry and mild, but with the exception of Naxos the soil is not very fertile; agricultural produce includes wine, fruit, wheat, olive oil, and tobacco. Cooler temperatures are in higher elevations and mainly do not receive wintry weather. The Cyclades are bounded to the south by the Sea of Crete. The Cyclades Prefecture () was one of the prefectures of