Diego. In: Dicionário de Nomes Próprios. 7Graus, Lda, abgerufen am 8. September 2022 (brasilianisches Portugiesisch).
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Rodrigo DÍAZ DE BIVAR (called El Cid.): Chronicle of the Cid, from the Spanish; by Robert Southey. [Translated mainly from the “Crónica particular del Cid,” with additions from the “Crónica de España” of Alphonso the Wise and the “Poema del Cid.” With extracts from the “Poema del Cid” in the original and in an English translation by John Hookham Frere. With a map.] Longman, Hurst, Rees, & Orme, 1808 (google.ch [abgerufen am 8. September 2022]).
ibge.gov.br
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Diego. In: Nomes no Brasil. Instituto Brasileiro de Geografia e Estatística, abgerufen am 19. April 2022 (portugiesisch).