This would later be considered by the Portuguese to have been a divine miracle, forever forming part of the legend of Castro Verde.

The old man advised the Henriques to leave the encampment alone when he heard the bell of the local chapel.

Riding off, Henriques was surprised by a ray of light that showed him (in one interpretation) the sign of the cross and Jesus Christ on a crucifix.

The following day, he succeeded in routing the Moors (through his own courage and faith, as the stories go) and was almost immediately declared the king of Portugal.

To honor the outstanding victory, then-King D. Sebastião later ordered the construction of St. Peter of the Heads Chapel.