Pisa, panguva iyoyo yaitarira gungwa pamuromo weArno, yakasvika pakakwirira zvikuru paukuru hwayo pakati pezana ramakore rechi 12 nerechi 13, apo ngarava dzayo dzakanga dzichitonga Western Mediterranean. Kurwisana pakati pePisa neGenoa kwakawedzera muzana remakore rechi12 uye kwakaguma neHondo yeMeloria (1284)
, iyo yakaratidza kutanga kwekuderera kwePisan; Pisa akaramba zvese zvaaiti Corsica uye akasiya chikamu cheSardinia kuGenoa muna 1299. Uyezve, kukunda kweAragonese kweSardinia, uko kwakatanga muna 1324, kwakatorera guta reTuscan simba pamusoro pe"Giudicati" yeCagliari neGallura. Pisa yakaramba yakazvimiririra uye ichidzora mhenderekedzo yeTuscan kusvikira muna 1409, apo yakabatanidzwa neFlorence.