Castile was not at all dominating at sea as late as the Treaty of Alcáçovas of 1479. Portugal got all the known and undiscovered Atlantic islands and African trade rights, with the exception of the Canary Islands. This was ratified by the Papal bu... read more
Castile was not at all dominating at sea as late as the Treaty of Alcáçovas of 1479. Portugal got all the known and undiscovered Atlantic islands and African trade rights, with the exception of the Canary Islands. read more
Best Answer: Even before Prince Henry there already existed plans and even a colaboration between Denmark and Portugal to explore the Atlantic. this during the reign of one of the wisest portuguese kings, D.Dinis, early 14th century. read more