Amerigo Vespucci relates the account of this expedition twice - first in a letter to Lorenzo Pietro Francesco di Medici, written in early 1503 (see (account) in Letter do Medici), and then again in his letters to Piero Soderini, written 1504-05 ([account] in Letter to Soderini).
An actual copy of this charter has never been found. Its contents and date, however, are summarized in a royal letter of March 3, 1522, confirming it. A copy of Loronha's captaincy charter is found in António Zeferino Cândido, editor (1900) Brazil: 1500-1900, Rio de Janeiro: Imprensa Nacional, p.392. A later royal letter of May 20, 1559, issued to Loronha's descendants, identifies the location of São João unambiguously as Fernando de Noronha island. See Duarte Leite (1923: p.276-8) and Roukema (1963: p.21).
