More than twenty years later, when the first book on Abyssinia was composed - that of Alvarez - the title designating the king of Abyssinia is "Prester John," or simply "the Preste."
The king of Portugal next despatched Bartolomeu Diaz in 1486 to continue discoveries southwards; while, in the following year, he sent Pedro de Covilhao and Affonso de Payva to discover the country of Prester John.
had addressed to Prester John to the Negus Alexander of Abyssinia, but he was detained by that prince and never allowed to leave the country.
His African experiences suggested The African Colony (1903), A Lodge in the Wilderness (1906), and Prester John (1910).
This last fact in particular caused western Europe to dream of an alliance with the great khan "Prester John," who should aid in the reconquest of Jerusalem and the final conversion to Christianity of the whole continent of Asia.