Tuhia he tomokanga mo tenei whitianga - Ko te whakataetae i waenga i Pisa me te Republic of Genoa i kaha ake i te rautau 13th a ka hua i te pakanga moana o Meloria (1284)
, i whawhai i mua tonu o te tauranga Pisan, i tohu i te timatanga o te heke o te mana o te taone, me te whakarere i nga kereme katoa mo Corsica me te hoko o tetahi waahanga o Sardinia ki Genoa i te 1299.