Genoa played a much less important part than Venice in the history of Greece. Unlike her great rival on the lagoons, she had no Byzantine traditions which attracted her towards the Near East, and it is not, therefore, surprising to find her appearing last of all the Italian Republics in the Levant. But, though she took no part in the Fourth Crusade, her sons, the Zaccaria and the Gattilusj, later on became petty sovereigns in the Aegean; the long administration of Chios by the Genoese society of the Giustiniani is one of the earliest examples of the government of a colonial. dependency by a Chartered Company, and it was Genoa who gave to the principality of Achaia its last ruler in the person of Centurione Zaccaria.