There has been much discussion concerning the identity of the architects of these walls. The mythical Chronicles state that responsibility for their initial construction fell to two master geometricians, the Roman, Casandro and the Frenchman, Florín de Pituenga; however, the style of construction suggests someone more familiar with the Arabic building style. Although the walls of Ávila are much less homogeneous than is usually claimed, there are certain styles of construction that suggest a formal similarity with the walls of Toledo or others under the influence of the Al-Andalus Moorish kingdom. These features include for example the regular stonework and the gate between two towers. In addition we know that the “mudéjares” were directly responsible for maintenance of the wall. This explains the existence of aesthetic details typical of Al-Andalus such as the use of red brick in the corner friezes which run below the battlements in the towers on the North and West sides, or the use of brick “alfiz” (a Moorish arch) to frame the climb up to the towers from the sentry walk. It is both paradoxical and moving that the element which personifies the bellicose attitude of Ávila to the Moors was maintained by the descendants of those against whom it was built.