Having thus captured the castle at Neiva, the count left next morning, without delay, with his forces and very soon reached Viana [do Castelo], which was a league distant from Neiva and which had declared for Castile. The governor there was a brother of Lope Gómez, Vasco Lorenzo de Lira by name. The count began to launch a vigorous attack on the castle from all sides, and many men from the area came to help him in this, setting fire to all the town gates, which burned right down. With the onslaught being so vigorous and determined, Diogo Gil, one of the constable's lieutenants, was knocked out. Another man was killed by a big stone hurled down from above: he was a noble squire called Fernandes, who was the greatest and most valiant man that there was, not just in Portugal, but throughout the whole of Spain; he had been a criado of King Fernando, and the count was deeply upset at his passing.

While defending himself, the governor was struck in the face by a bolt. Recognising that he was wounded and that the town's gates were ablaze, he realised at once that the only outcome would be a forced entry. Unable to hold out any more, he negotiated that the attack should be halted, that he and his men should leave in safety with all their possessions and that he would surrender the town to the constable. The count readily accepted this and immediately took possession of the town. That very day he lodged there, along with some of his troops.

Vasco Lorenzo, the aforesaid governor, along with his men, made for Ponte de Lima, where his brother, Lope Gómez, was stationed. When the latter saw how broken Vasco Lorenzo was, he sent him at once to Braga, bearing a message that he should be handed the castle there. It, too, was held by Lope Gómez on behalf of the King of Castile.