One of the latest voyages recorded by Azurara is that of "Vallarte the Dane" (1448), which ended in utter destruction near the Gambia, after passing Cape Verde. The chronicler, though writing in 1453, does not continue his record beyond this year, 1448; his promise to give us the remainder of the Infant's achievements in a second chronicle seems never to have been fulfilled; and his descriptions of Madeira and the Canaries, in the latter part of the _Chronicle of Guinea_, are unfortunately of only slight value for the history of discovery. Yet, before the Prince's death in 1460[21] and in the last six years of his life, several voyages of some importance prove that Azurara's silence is merely accidental. Cadamosto's two journeys of 1455-6, and Diego Gomez' ventures of 1458-60, advanced West African discovery almost to Sierra Leone. The former, a Venetian seaman in the service of Prince Henry, also explored part of the courses of the Senegal and the Gambia and gained much information about the native tribes. One of his chief exploits, an alleged discovery of the Cape Verde islands, has been disputed in the name of Diego Gomez, who in 1458-60 twice sailed to Guinea, and on the second voyage "sighted islands in the Ocean, to which no man had come before." We postpone this point for further examination, only adding that we believe Cadamosto's prior claim to be sound, although the islands in question do not appear in any document before 1460. [Footnote 21: _Aliter_ 1462 or 1463 (Galvano and Barros, who also date the discovery of C. Verde and the Senegal by "Dinis Fernandez," 1446: Barros, _I_ i, 9, 13); but this date is certainly incorrect.]