^Fernando de Meneses Vaz, "Famílias da Madeira e Porto Santo", Vol. 1, p. 138, tít. de Araújos, § 4.º, n.º 9
^Aleixo Manuel da Costa, "Dicionário de Literatura Goesa", Vol. 3, p. 157 reflects a legend over how the brothers came to be called Bettencourt, suggesting that this came about because they were known in قلمرية as the "Bitoncares" perhaps because his father was a native of Britona. This epithet was said to have displeased them and they had it probably transformed into Bettencourt! This legend would have been possible only by ignoring that the mother of the two Rodrigues brothers was also called Bettencourt, so the name they used was perfectly legitimate.
^"Os Luso-Descendentes da Índia Portuguesa", Jorge Eduardo de Abreu Pamplona Forjaz e José Francisco Leite de Noronha, Fundação Oriente, 1.ª Edição, Lisboa, 2003, Volume III N - Z, pp. 428 e 431
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