[Footnote 14: _Aliter_, 1443 (Barros, _I_, i, 7) or 1444 (Galvano, who apparently dates the discovery of the Rio do Ouro 1443). See, in this connection, Affonso V's Charters of October 22, 1433, and February 3, 1446, granted to Prince Henry. In 1442 the Infant was created a Knight of the Garter of England. He was the 153rd Knight of the Order; and his collar descended, through many holders, to the late Earl of Clarendon.] [Footnote 15: Necessary by decree of the Regent Pedro, for any "Guinea" or African voyage (Azurara, _Guinea_, ch. xv).] [Footnote 16: Especially a palace, a church or chapel, and an observatory.] [Footnote 17: Which seems to have shown the way, in this respect, to its greater sister, Lisbon.] In 1444 and 1445 a number of ships sailed with Henry's license to "Guinea," and several of their commanders achieved notable successes. Thus Dinis Diaz, Nuno Tristam, and others reached the Senegal. Diaz rounded Cape Verde in 1445,[18] and in 1446 Alvaro Fernandez sailed on as far as the River Gambia (?) and the Cape of Masts (Cabo dos Mastos). In 1445, also, João Fernandez spent seven months among the natives of the Arguim coast, and brought back the first trustworthy account of a part of the interior. Gonçalo de Sintra and Gonçalo Pacheco, in 1445, and Nuno Tristam in 1446,[19] fell victims to the hostility of the Moors and Negroes, who, perhaps, felt some natural resentment against their new visitors. For, in Azurara's estimate, the Portuguese up to the year 1446 had carried off 927 captives from these parts; and the disposition and conversion of these prisoners occupied a good portion of the Infant's time. He probably relied on finding efficient material among these slaves for the further exploration and Christianization of the Coast, and even of the Upland. We know that he used some of them as guides and interpreters.[20] [Footnote 18: 1454 in O. Martins.] [Footnote 19: 1447, according to Barros (_I_, i, 14) and Galvano.] [Footnote 20: Cf. Azurara, _Guinea_, chs. xiii, xvi.]