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.

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.

Towards the east, at a little distance from it, flows a spring with abundance of excellent water, while at its base rises the church of the Reis Magos, ascended by a beautiful flight of stairs.

This edifice was built on the ruins of a pagoda in 1550 by the Franciscans, with the sum allotted to them by the Government, and bears a crown on its façade, and the royal arms on its sanctuary and other places.

The pavement is dotted with inscriptions, the most important of which, found in the sanctuary, indicated the spot enclosing the remains of Dom Luís de Ataíde, Count of Athoughia, who twice held the position of Viceroy of Portuguese India and Goa.