In 1509, D. Jorge de Lencastre introduced a new set of rules for the Order of Santiago, overhauling its administration in a centralized fashion, bringing it closer in line with the rules of their Spanish brethren. This was done perhaps to gain the support of the Spanish monarchy and the Pope, but to no avail. In 1516, Manuel secured from Pope Leo X the authority to appoint Jorge's successor as grand master of Santiago.