Nyora kupfuurira kweiyi ndima - Muna 1238, Papa Gregory IX akaumba mubatanidzwa pakati peGenoa neVenice mukurwisana noumambo, uye nokudaro mukurwisana nePisa,wo. Gore rimwe gare gare, akadzinga Frederick II muchechi ndokudanidzira kuti dare rinorwisana noUmambo riitwe muRome muna 1241. Musi waMay 3, 1241, ngarava dzakabatanidzwa dzePisan neSicily, dzakatungamirwa nemwanakomana wamambo Enzo, dzakarwisa ngarava dzeGenoa dzaitakura maprelate kubva kuchamhembe kweItari neFrance, padyo nechitsuwa cheGiglio (Hondo yeGiglio
), pamberi peTuscany; vaGenoese vakarasikirwa nengarava 25, nepo vafambisi vengarava vanenge chiuru, makadhinari maviri, uye bhishopi mumwe vakatapwa. Pashure porukundo rukuru urwu, kanzuru yokuRoma yakakundikana, asi Pisa yakadzingwa muchechi. Ichi chiito chakanyanyisa chakabviswa bedzi muna 1257. Chero zvazvingava, guta reTuscan rakaedza kushandisa mamiriro ezvinhu akanaka kukunda guta reCorsican reAleria uye kunyange kukomba Genoa pachayo muna 1243.