[Footnote 189: Several documents exist relating to the Government, etc., of the Azores during Prince Henry's life; for instance:--(1) A royal charter of July 2, 1439, dealing with colonisation. (2) A similar charter of April 5, 1443, exempting the colonists from tithe and customs. (3) A similar charter of April 20, 1447, establishing the same exemption for the island of St. Michael, granted to the Infant D. Pedro. (4) A similar charter of March, 1449, to the Infant D. Henry, licensing him to people the Seven Islands of the Azores. (5) A similar charter of January 20, 1453, granting the Island of Corvo to the Duke of Braganza. (6) A donation of September 2, 1460, from the Infant D. Henry to his adopted son, the Infant Dom Fernando, of the Isles of Jesus Christ and Graciosa. [To which may be added: A royal charter of December 3, 1460, transferring to the Infant D. Fernando, Duke of Viseu, the grant of the Archipelagos of Madeira and the Azores, vacant by the death of D. Henry.] See _Archivo dos Açores_, i, 3, 5, 6, 7, 9, 11; Martins, _Os Filhos do D. João_, pp. 261-2 (where the date of Gonçalo Velho Cabral's discovery of the Formigas is given as 1435); _Documents_ in Torre do Tombo, Gaveta 15, Maço 16, No. 5, of September 16, 1571.] Jobst van Heurter, some time after he had obtained the grant or sub-lease of Fayal, appears also to have become Captain Donatory of Pico, with a commission to colonise this island. Flores and Corvo were first granted, as far as our records go, to a lady of Lisbon, Maria de Vilhena, likewise after the death of Prince Henry. It is said that Van der Haagen,[190] when he moved from S. Jorge to Fayal, did so at the invitation of Jobst van Heurter, who had been there four years, and now promised him a part of the island. The two quarrelled, however, and "Silveira" left Fayal and went to Terceira. Some time after this he visited Flanders, and returning to the Azores by way of Lisbon, became the guest of D. Vilhena, who had received a grant of Flores and Corvo. She now proposed to Van der Haagen that he should colonise and govern these islands for her, which he did for seven years. [Footnote 190: "Da Silveira." See above, p. lxxxix.] * * * * * Next, as to the Cape Verde islands. There is no positive ground for supposing that any Europeans discovered or colonised these before Prince Henry. The ancient Gorgades, Hesperides, and so forth have been identified with them by some, but all this remains in the state of guess-work--guess-work which has no great probability behind it.