Adelantado (, , ; meaning "advanced") was a title held by some Spanish nobles in service of their respective kings during the Middle Ages. It was later used as a military title held by some Spanish conquistadores of the 15th, 16th and 17th centuries. Adelantados were granted directly by the monarch the right to become governors and justices of a specific region, which they were charged with conquering, in exchange for funding and organizing the initial explorations, settlements and pacification of the target area on behalf of the Crown of Castile. These areas were usually outside the jurisdiction of an existing audiencia or viceroy, and adelantados were authorized to communicate directly with the Council of the Indies. The reconquista The term has its origins in the reconquista and comes from the phrase por adelantado (Spanish: "in advance", although translations stating "one who goes before" and "the forward man" are also found). According to the Siete Partidas the office of adelantado was the equivalent of the Roman Praefectus urbi (Latin). The earliest definitely known adelantado was appointed by Alfonso X in 1253 in the recently conquered territory of "La Frontera" (Andalusia). However the office had precedents in the duties and rights held by some officers of the Navarrese dynasty of Castile and León, and Álvar Fáñez or Fortún Sánchez in the Ebro valley performed similar services in detached territories beyond the frontier. It was during this time that the Siete Partidas, commissioned by Alfonso X, more precisely identified the powers of the office. That law code created the position of an adelantado mayor, who was at the same time an intermediary appellate judge, located in the judicial hierarchy between local justices and the king's court, and an executive officer, who as a direct representative of the king, was charged with implementing royal orders in his assigned area. Most appointees were from the upper nobility or the royal family. After its success in Andalusia, the institution was introduced in the northern areas of the peninsula, merging with, and becoming indistinguishable from an older judicial office, the Royal Merinos. Overseas Beyond the peninsula, the term adelantado was granted to Alonso Fernández de Lugo in the conquest of the Canary Islands and was confirmed to members of his family. The term became modified over time. During the colonization of the Americas and Spanish East Indies (Asia), each charter specified different powers to each adelantado,