Rumeu de Armas, Antonio, Real Academia de la Historia, Spain

• Revista de Indias Vol. 46 No. 177 (1986) - Articles
  One aspect of the rivalry between Portugal and Castille for supremacy in the Atlantic: the problems involved in the concession of the larger Canary Islands by Henry IV of Castille to the counts of Atouguía and Vila Real, vassals of Portugal
  Abstract  PDF