Jean Gimpel suggests that the two
Franciscan friars who accompanied the Vivaldi brothers may have read the written by fellow Franciscan
Roger Bacon, in which Bacon suggested that the distance separating Spain and India was not great, a theory that was later repeated by
Pierre d'Ailly and tested by
Christopher Columbus. It is uncertain how far the Vivaldi brothers reached. They may have seen or landed on the
Canary Islands. "Gozora" is a name found in some medieval charts for
Cape Nun, which lies before the Canary Islands (e.g. in the maps of
Giovanni da Carignano, early 1300s, and the
Pizzigani brothers, 1367). The name of the ship may be the source for the Canary Island of
Alegranza, and has led to the supposition that the brothers landed there (or at least that one of the ships capsized there). An allusion to the Vivaldi galleys is given in the , a semi-fantastical travelogue written by an anonymous Spanish friar c. 1350–1385. There are two passages relating to the Vivaldi brothers. In the first, the narrator, traveling in what seems like the
Guinea region (sub-Saharan Africa) reaches the city of , capital of the black African empire of , which is allied to
Prester John. "They told me in this city of Graciona that the Genoese who escaped the galley that was wrecked at Amenuan were brought (betrayed?) here, but it was never known what became of the other galley which escaped." When the traveling friar moved on to the neighboring city of , he came across a Genoese man named who was in this city "searching for his father who had left in two galleys, as I have already explained, and they gave him every honor, but when this Sor Leone wanted to traverse to the empire of Graciona to search for his father, the emperor of Magdasor did not allow it, because way was doubtful and the path was dangerous" As it happens, Sorleone is the real name of Ugolino's actual son. The locations of these kingdoms have been the subject of much speculation. The references to Prester John and (which sounds much like Mogadishu) have led some to assume that the other galley circumnavigated Africa but was intercepted near the
Horn of Africa. However, the narrator's geographical references (e.g. to the
Senegal-
Niger River, the gold trade, the
Mali Empire, even the
Gulf of Guinea) suggest that Abdelsalib and Magdasor were in non-Muslim sub-Saharan
West Africa. The localization of "Amenuan", the place where the first galley capsized, is suggestive of the
Senegambia region. If there is a grain of truth in any of this, it would not stretch credulity to imagine that the Vivaldis got as far as Senegal, and that their adventures ended there. A century later, in late 1455,
Antoniotto Usodimare, a Genoese navigator in the service of Prince
Henry the Navigator, claimed rather improbably in a letter that while traveling up the
Gambia River in West Africa, he came across a man who spoke the
Genoese dialect and claimed to be the last descendant of the survivors of the Vivaldi expedition. (Usodimare's travelling companion,
Alvise Cadamosto, mentions no such meeting in his memoirs.) Usodimare gives more details of the Vivaldi expedition in another document in the Genoese archives:
Gion is the name of the biblical
Gihon river, which stems from the
Garden of Eden and flows through Ethiopia. In this instance, it may be a reference to the Senegal River. Usodimare's narration seems to be a mere repetition of the tale told in the . The historian
José de Viera y Clavijo writes that Father
Agustín Justiniani, in the , includes the information that two Franciscans also joined the Vivaldi expedition. Viera y Clavijo also mentions the fact that
Petrarch states that it was a local tradition that the Vivaldis did indeed reach the Canary Islands. Neither Justiniani nor Petrarch knew of the expedition's fate.
Papiro Masson in his
Anales writes that the brothers were the first modern discoverers of the Canary Islands. The Vivaldi brothers subsequently became the subjects of legends that featured them circumnavigating Africa before being captured by the mythical Christian king Prester John. The Vivaldis' voyage may have inspired
Dante's Canto 26 of the
Inferno about
Ulysses’ last voyage, which ends in failure in the
Southern Hemisphere. According to Henry F. Cary, Ulysses' fate was inspired "...partly from the fate which there was reason to suppose had befallen some adventurous explorers of the Atlantic ocean." ==See also==