In the fifteenth century, the Mediterranean world was in turmoil. A new sultan, Mehmet II, had just inherited a vast empire stretching over two continents in the centre of which the ruins of the Byzantine Empire survived through the city of Constantinople. In order to seal his accession, he therefore undertook important preparations to conquer the “City guarded by God”. Mehmet then ordered the construction, within 4 months, of an imposing fortress nicknamed Boǧazkesen (the throat cutter).
The aim of this paper is the study of the now destroyed fortifications of the Greek city of Chalcis (Evripos / Negreponte / Egriboz). Having been an important urban centre during the Early and Middle Byzantine Period, Chalcis was occupied by the Latins after the capture of Constantinople in 1204 and became a significant trade centre of Venice. By the end of the fourteenth century, the city became a Venetian holding. In 1470 the Ottomans captured the city after a brief siege.