High Quality Content by WIKIPEDIA articles! The Battle of Ceuta (August 14, 1415) and the subsequent conquest of the Wattasid city of Ceuta by the Portuguese had its roots in the earliest years of the House of Aviz dynasty of Portugal. Both the Battle of Ceuta and, in a larger sense, the era of European expansion were influenced by the Infant Dom Henrique of Portugal; he is better known to history as Prince Henry the Navigator.