Maria da Conceição Infante de Lacerda Pereira de Eça Custance O'Neill (Lisbon, 19 November 1873 – 23 March 1932) was a Portuguese writer, poet, journalist, and spiritualist of Irish descent.
Maria O'Neill was the daughter of Carlos Tomás O'Neill (Lisbon, Encarnação, 6 December 1846 – ?) and wife (m. 1873) Maria Carlota Pereira de Eça Infante de Lacerda (Lisbon, 15 July 1852 – Lisbon, 1921), daughter of José António Pereira de Eça[1] and wife Maria da Conceição Infante de Lacerda,[2] and paternal granddaughter of Carlos Torlades O'Neill (30 April 1820 (Baptized Lisbon, São Paulo, 13 May 1822) – ?) and wife (m. Lisbon, Encarnação, 4 November 1845) Adelaide Carolina Custance (Lisbon, Santiago, 15 September 1821 – ?), daughter of Thomas Parsons Custance, an English subject (married secondly to his aunt Ludovina Cecília O'Neill), and first wife Antónia Eugénia Barbosa de Brito.
She had a younger brother Carlos Torlades O'Neill (Lisbon, 13 December 1874 – ?), Merchant in Lisbon, where he lived single, Company Administrator, Member of the Administration Council of the Companhia de Seguros Previdente, married to Laura Moreira, without issue, and two aunts, Adelaide O'Neill (? – termo of Setúbal, her Quinta dos Bonecos, 14 November 1865), unmarried and without issue, and Ethelinda O'Neill, unmarried and without issue.
She was a great-granddaughter of José Maria O'Neill, the titular head of the Clanaboy O'Neill dynasty, whose family has been in Portugal since the 18th century, and wife Ludovina de Jesus Alves Solano.
O'Neill was a writer, poet and journalist.[3] She was also a spiritualist, member of the Superior Deliberative Council of the Federação Espírita Portuguesa and member of the Editorial Office of the magazine Espiritismo. She died on the high seas, on the Atlantic Ocean, on board of the General Osório, travelling from Brazil back to Portugal after giving one of her Spiritualist Conferences.
She became a member of the Lisbon Academy of Sciences, was a vegetarian, and was initiated into Theosophy, a mystical school or initiatory movement that proposed that all religions arose from common stem teachings while seeking knowledge about the mysteries of human existence, the beginning of life and nature, and later became interested in spiritism, to which she devoted a large part of her existence until the end of her days. She was also a vegetarian, and a member of the Lisbon Academy of Sciences.[4]
She married in Lisbon in 1890 António de Bulhões (c. 1870 – ?), a civil servant, and had four children:[5]