Freire, Antonio de Oliveira (1755). Descripçam Corografica do Reyno de Portugal [A Chorographic Description of the Kingdom of Portugal] (in Portuguese). Lisbon: Officina de Bernardo Anton. de Oliveir. p. 83.
Castro, João Bautista de (1762). Mappa de Portugal Antigo, e Moderno [Map of Portugal Ancient and Modern] (in Portuguese). Lisbon: Officina Patriarcal de Francisco Luiz Ameno. p. 425.