The Battle of Pedroso was fought on 18 February 1071, in Pedroso, near the Cávado river crossing next to Monastery of São Martinho de Tibães, Braga, Portugal.^[1][2][3]

Although the battle of Pedroso has been mistakenly dated in January, as mentioned in the Chronica Gothorum, a donation to the Monastery of Santo Antonino de Barbudo dated 17 February 1071 shows that the battle took place in February rather than in January.^[4]

Forces under García II, the King of Galicia, defeated those under Nuno II Mendes, the last count of Portugal of the House of Vímara Peres. Nuno Mendes died in the battle, and Garcia II declared himself King of Portugal, the first to do so.^{[5][6][7][8][9][10]}