Referência documental:
SAA, Stadsarchief Amsterdam, NA 643/145- 146, Nots: S. Cornelisz. Contract (Power of attorney, Loan) of Diogo Gomes da Costa, Francisco Rodrigues Vega, Antonio Ribeiro, Francisco Gomes da Costa, Francisco da Costa de Elvas, Juan Filipe Vranco, Juan Cibran Espor, Jaco Craz