[1] Indeed, in 1180, the Almohad fleet from Seville, consisting of more than 10 galleys under the command of Gamin ben Mardanis, launched an attack on Lisbon.

[2] The Portuguese hastily armed all available vessels in the port and engaged the Almohad squadron, marking their first naval battle in history.

[5][6] Encouraged by this triumph, Portuguese admiral Fuas Roupinho ventures to lead a successful raid on Ceuta, taking many Muslim ships in the harbor.

[5] In June 1182, the Portuguese fleet, emboldened by its previous successes, sails in the ocean off the Almohad territories.

[1] The naval battle tilts in favor of the Almohads, inflicting a severe defeat on the Portuguese, resulting in the loss of over 20 to 30 ships and 1,800 prisoners.