From the information obtained till present day, it is clear that following the battlement of the late Byzantine period, a further semicircular structure / barbican was constructed in medieval times. It is not sure whether the battlement and the semicircular structure co-existed (still to be defined). However as discussed onsite with Dr Spiteri (Restoration Unit) following the knights’ major additions of the bastions in the 16th century, it is likely possible that the semicircular structure was dismantled during this period since it was within shot range of the newly added fortifications. The battlement was partially exposed again at a later stage when in the 18th century a buttress was added beneath Verdala Palace.