Predating Fort Aguada by half a century, a second, smaller fort that crowns the headland jutting into the narrowest stretch of the Mandovi, almost facing the capital city Panjim, is the Reis Magos Fort. This Fort, surrounded by sturdy laterite walls studded with typically Portuguese turrets, was erected in 1551 to protect the narrowest point at the mouth of the Mandovi estuary. It was enlarged subsequently on different occasions and finally re-erected in 1707. The fort formerly accommodated viceroys and other dignitaries newly arrived from, or en route to, Lisbon, and in the early eighteenth century proved a linchpin in the wars against the Hindu Marathas, who were never able to take it. The bastion was used as a prison.