 This led to a dispute with the papacy, and Pope Calixtus II sent letters to the queen threatening excommunication.Negotiations between the monarch and the bishop were reopened, but they were soon broken off and Urraca gathered an army and invaded Galicia.She marched to the castle of Cira, thence to Tabeiros and Salnes, and finally camped at the mount of Picosacro, close by Santiago de Compostela.