section_path: Quest for Asia/Agreement with the Spanish crown
section_name: Agreement with the Spanish crown
paragraph_text: Agreement with the Spanish crown
  
  Columbus waited at King Ferdinand's camp until Ferdinand and Isabella conquered Granada, the last Muslim stronghold on the Iberian Peninsula, in January 1492. A council led by Isabella's confessor, Hernando de Talavera, found Columbus's proposal to reach the Indies implausible. Columbus had left for France when Ferdinand intervened, first sending Talavera and Bishop Diego Deza to appeal to the queen. Isabella was finally convinced by the king's clerk Luis de Santángel, who argued that Columbus would take his ideas elsewhere, and offered to help arrange the funding. Isabella then sent a royal guard to fetch Columbus, who had traveled 2 leagues (over 10 km) toward Córdoba.
  
  In the April 1492 " Capitulations of Santa Fe ", King Ferdinand and Queen Isabella promised Columbus that if he succeeded he would be given the rank of Admiral of the Ocean Sea and appointed Viceroy and Governor of all the new lands he might claim for Spain. He had the right to nominate three persons, from whom the sovereigns would choose one, for any office in the new lands. He would be entitled to 10% (diezmo) of all the revenues from the new lands in perpetuity. He also would have the option of buying one-eighth interest in any commercial venture in the new lands, and receive one-eighth (ochavo) of the profits.
  
  In 1500, during his third voyage to the Americas, Columbus was arrested and dismissed from his posts. He and his sons, Diego and Fernando, then conducted a lengthy series of court cases against the Castilian crown, known as the pleitos colombinos, alleging that the Crown had illegally reneged on its contractual obligations to Columbus and his heirs. The Columbus family had some success in their first litigation, as a judgment of 1511 confirmed Diego's position as viceroy but reduced his powers. Diego resumed litigation in 1512, which lasted until 1536, and further disputes initiated by heirs continued until 1790.