The bridge leading to the capital was not then fortified, but its passage was gallantly disputed by Governor Antonio Mosquera, an old soldier of the war in Flanders. The English were far superior in numbers and armament, and Mosquera had to fall back. Captain Serralta, the brothers John and Simon Sanabria, and other natives of the island, greatly distinguished themselves in this action.
Romana abandoned the position as they advanced, drew off to Verin, and then retired along the road towards Sanabria. He thus left it open to himself either to follow the road to Chaves, as agreed upon, or to retire into Spain through the mountains. Franceschi's cavalry and a battalion of French infantry overtook between two and three thousand men forming the rear of Romana's column.