In 1584, the Venetians, realising that the coastal fortifications were easy to conquer by the enemies attacking from the nearby hills, decided to strengthen their defense by constructing new fortifications at the top of the hill.
En 1584, os venecianos, decatándose de que as fortificacións costeiras eran fáciles de conquistar polos inimigos que atacaban desde os outeiros veciñais, decidiron reforzar o seu defensa mediante a construción de novas fortificacións na cima do outeiro.