has it that a Christian community was established there in the 1st century, having as its bishop Crispus, the ruler of the Corinthian synagogue, who became a Christian, and was baptised by Paul the Apostle. There are written records of participation by later bishops of Aegina, Gabriel and Thomas, in the Councils of Constantinople in 869 and 879. The see was at first a suffragan of the metropolitan see of Corinth, but was later given the rank of archdiocese. No longer a residential bishopric, Aegina is today listed by the Catholic Church as a titular see. Byzantine period Aegina belonged to the East Roman (Byzantine) Empire after the division of the Roman Empire in 395. It remained Eastern Roman during the period of crisis of the 7th–8th centuries, when most of the Balkans and the Greek mainland were overrun by Slavic invasions. Indeed, according to the Chronicle of Monemvasia, the island served as a refuge for the Corinthians fleeing these incursions. The island flourished during the early 9th century, as evidenced by church construction activity, but suffered greatly from Arab raids originating from Crete. Various hagiographies record a large-scale raid , that resulted in the flight of much of the population to the Greek mainland. During that time, some of the population sought refuge in the island's hinterland, establishing the settlement of Palaia Chora. According to the 12th-century bishop of Athens, Michael Choniates, by his time the island had become a base for pirates. This is corroborated by Benedict of Peterborough's graphic account of Greece, as it was in 1191; he states that many of the islands were uninhabited for fear of pirates and that Aegina, along with Salamis and Makronisos, were their strongholds. Frankish rule after 1204 After the dissolution and partition of the Byzantine Empire by the Fourth Crusade in 1204, Aegina was accorded to the Republic of Venice. In the event, it became controlled by the Duchy of Athens. The Catalan Company seized control of Athens, and with it Aegina, in 1317, and in 1425 the island became controlled by the Venetians, when Alioto Caopena, at that time ruler of Aegina, placed himself by treaty under the Republic's protection to escape the danger of a Turkish raid. The island must then have been fruitful, for one of the conditions by which Venice accorded him protection was that he should supply grain to Venetian colonies. He agreed to