In medieval Iberia, an alférez (, ) or alferes (, ) was a high-ranking official in the household of a king or magnate. The term is derived from the Arabic الفارس (al-fāris), meaning "horseman" or "cavalier", and it was commonly Latinised as alferiz or alferis, although it was also translated into Latin as armiger or armentarius, meaning "armour-bearer". The connexion with arms-bearing is visible in several Latin synonyms: fertorarius, inferartis, and offertor. The office was sometimes the same as that of the standard-bearer or signifer. The alférez was generally the next highest-ranking official after the majordomo. He was generally in charge of the king or magnate's mesnada (private army), his personal retinue of knights, and perhaps also of his armoury and his guard. He generally followed his lord on campaign and into battle.