António Augusto Carvalho Monteiro is usually described as a rich eccentric who used his money building his dream home, which he did. But he was also an accomplished naturalist, something that has been largely ignored until recent years. Research:

• Britannica, The Editors of Encyclopaedia. "The Lusiads". Encyclopedia Britannica, 5 Feb. 2018, https://www.britannica.com/topic/The-Lusiads
• Britannica, The Editors of Encyclopaedia. "Sintra". Encyclopedia Britannica, 19 Aug. 2024, https://www.britannica.com/place/Sintra
• Campos, Antonio Luis, and Goncala Pereira Rosa. “Quinta da Regaleira, the mansion and the philosopher.” National Geographic Portugal. March 29, 2022. https://www.nationalgeographic.pt/historia/quinta-da-regaleira-a-mansao-e-o-filosofo_3009
• “Cultural Landscape of Sintra.” UNESCO World Heritage Convention. https://whc.unesco.org/en/list/723/
• Hernandez, Jo Farb. “QUINTA DA REGALEIRA.” 2016. https://www.spacesarchives.org/explore/search-the-online-collection/antonio-augusto-carvalho-monteiro-luigi-manini-quinta-da-regaleira/
• Judice, Jose. “Portuguese Fake Gothic for Sale.” The Daily Times. Jan. 3, 1988. https://www.newspapers.com/image/722763006/?match=1&terms=%22Carvalho%20Monteiro%22
• “No Sedition Among Army and Navy.” Machester Courier and Lancashire General Advertiser. Oct. 23, 1913. https://www.newspapers.com/image/800244390/?match=1&terms=%22Carvalho%20Monteiro%22
• “Palace and Quinta da Regaleira.” Visit Sintra. https://visitsintra.travel/en/visit/monuments/palace-and-quinta-da-regaleira
• “Pocket-sized Wonder.” Evening Star. March 16, 1958. https://www.newspapers.com/image/869772337/?terms=%22Carvalho%20Monteiro%22
• “A Remarkable Watch.” The Wells Journal. Feb. 2, 1905. https://www.newspapers.com/image/812346661/?match=1&terms=%22Carvalho%20Monteiro%22
• Reed, Bill. “A Magical Place.” Guelph Mercury. Oct. 2, 2010. https://www.newspapers.com/image/1078331285/?match=1&terms=%22Carvalho%20Monteiro%22
• Ruggeri, Amanda. “The Hidden World of the Knights Templar.” BBC. Feb. 24, 2022. https://www.bbc.com/travel/article/20160510-the-hidden-world-of-the-knights-templar
• Silva, Lara. “The Portuguese Revolution of 5 October 1910.” Portugal.com. August 25, 2022. https://www.portugal.com/history-and-culture/the-portuguese-revolution-of-1910/
• “Tact of American Ambassador Increases International Ties.” The Miami News. Jan. 20, 1913. https://www.newspapers.com/image/298526714/?match=1&terms=%22Carvalho%20Monteiro%22
• Teixeira, Fernando and Izabela Cardosa. “The Mysterious Inverted Tower Steeped in Templar Myth.” BBC. Feb. 21, 2020. https://www.bbc.com/travel/article/20200220-the-mysterious-inverted-tower-steeped-in-templar-myth
• “A Watch That Tells All.” The Ottowa Citizen. March 29, 1958. https://www.newspapers.com/image/456918242/?match=1&terms=%22Carvalho%20Monteiro%22
• Worral, Simon. “The Templars Got Rich Fighting for God, Then Lost It All.” National Geographic. Sept. 23, 2017. https://www.nationalgeographic.com/history/article/knights-templar-crusades-dan-jones?loggedin=true&rnd=1724727570075

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