glossy glass flag of republic of pisa

11th 15th arezzo background banner become being carrara center centered century city commercial continental country dominated economic emblem euro europe european existed facto flag florence genoa glass glossy government grosseto illustration independent italia italian italiana italy livorno lucca massa mediterranean merchants milan milano nation national parma pisa pistoia piza powerhouse prato repubblica republic rome rose scuderia siena state superseded surpassed symbol symbolic toscana tuscan tuscany union unity which whose world