He rejoiced at news of fresh discoveries in 1441 which seemed to bring him nearer 'to the Indies and to the land of Prester John.' Since the early fourteenth century, the tradition which at first referred only to a Tartar chieftain... is gradually transferred to the Negush (sic) of Abyssinia, and it is probably this potentate, however vaguely understood, whom Dom Henrique seeks under the name of 'Preste João.' And, failing the Prester, he catches eagerly at any tale of a Christian prince in Guinea. Thus in 1446 he sends an expedition to Cape Verde, having heard that the king of that land was a Christian, inviting this potentate, 'if he truly held the law of Christ,' to aid in the war against the Moors, in which 'the King of Portugal and the Infant were continually toiling.'