 Complete the following phrase:  In 1471, under the command of Afonso V, he was present at the conquest of Tangier and Arzila in Morocco, serving there as an officer for some years. In 1476 he accompanied Prince John in wars against Castile, including the Battle of Toro. He participated in the campaign on the Italian peninsula in 1480 to assist Ferdid I of Naples in repelling the 