VI. On an unrecorded Contract entered into between Ferdinand and Isabella, King and Queen of Castille and Leon, and Ferdinand, King of Sicily, for the Marriage of Isabella, eldest daughter of Ferdinand and Isabella, with Ferdinand, Prince of Capua, May 21

Prior to the fifteenth century, Spain being constituted by a number of small independent states, their interests clashed with each other, and serious feuds became the natural consequence. When reduced, however, to one common rule, belonging to one nation, discovery and conquest followed, and its domestic institutions, together with the character of its literature, improved. It is to the reign of Ferdinand and Isabella that this beneficial consolidation and completion is to be ascribed. The states into which Spain in the beginning of the fifteenth century was arranged, consisted of Castille, Aragon, Navarre, and Granada. These at length were included within one monarchy, and Castille became the capital of the kingdom.