Luís was born in the city of Porto, on 6 October 1630,[3] since is father was the Governor of the Relação e Casa do Porto,[4] hereditary rank given to his family in 1582 by Philip II of Spain, the new king of Portugal after the Iberian Union. In 1633, Diogo de Sousa was appointed chairman of the Conselho da Fazenda[5] by Philip IV and the family moved to Madrid. The young Luís entered in the household of queen Elisabeth as a page[6] until 1646, when his family was allowed to return to Portugal after the revolution of 1640.[7]
Religious studies
In Lisbon, Luís de Sousa was admitted in the household of Prince Teodósio, the heir-apparent son of the new Portuguese king John IV, starting his religious studies in the Jesuits College of Santo Antão.[8] On 8 February 1651 went to Rome, to the Pontifical Gregorian University, where he obtained a doctorate in canon law [9] after what he spend some years working in the Roman Curia.[10] It was in Rome that, most likely, Luís was ordained Priest, but there is no information about when and where it occurred.
On 30 August 1679 Luís de Sousa was appointed Councilor of State [19] becoming one of the most influential person in the affairs of state.[20]
His most important legacy while Archbishop of Lisbon was the BullLausperene given by Innocent XI in 1682, granting the privilege of the permanent exposition of the Blessed Sacrament in the churches of Lisbon, as was practiced in Rome.[21] This privilege had continuous renovations until 1784, when Pius VI granted a perpetual concession, that is in use until our days.[22]
Luís de Sousa had a son, Leonardo de Sousa,[28] whose biographical details are nonexistent. He married Francisca Micaela de Lemos and had a daughter, Clara Antónia de Sousa.[29] She married Manuel de Ramires Esquível, a Fidalgo of the Royal Household, and gave origin to a large number of descendants.[30]
^Sousa, António Caetano de (2007), Historia Geneologica da Casa Real Portuguesa (1749), Academia Portuguesa da História, p. 321, volume XIII, ISBN978-989-554-305-2
Gayo, Felgueiras (1941). Nobiliário das Famílias de Portugal (in Portuguese). Agostinho de Azevedo Meirelles. pp. 512–524, volume XIII.
Genro, Manuel Vaz (1958). O lausperene em Lisboa e em outras terras do país (in Portuguese). União Gráfica. p. 11.
Sousa, António Caetano de (2007). História Genealógica da Casa Real Portuguesa (1749) (in Portuguese). Lisbon: Academia Portuguesa da História. pp. 315–325, volume XIII. ISBN978-989-554-305-2.