Margarida de Castro e Souza
, a 15th century Portuguese
noblewoman, was an ancestor of Queen Charlotte
, 1744-1818, consort of King George III of the United Kingdom
, through her mother Princess Elizabeth Albertine of Saxe-Hildburghausen
Margarida's descent from a 6 times removed speculated (albeit unproven) Moorish woman is one of several reasons Queen Charlotte, and consequently the present British Royal Family, is thought to have African ancestry. This, however, is contradicted by genealogists, who trace Margarita's descent to Afonso III of Portugal and a mistress of his called Madragana (Mor Afonso), daughter of the Mozarab (Iberian Christians living under Muslim domination) governor of Faro, Aloandro Ben Bekar .
Margarita married Jean II, count of Neufchâtel (1414-1489), and their issue propagated throughout Europe.
- Anselmo Braamcamp Freire, Brasões da Sala de Sintra, 3 vols., Lisbon, Imprensa Nacional-Casa de Moeda, 1973.
- António Caetano de Sousa, História Genealógica da Casa Real Portuguesa, Coimbra, Atlântida-Livraria Editora, 1946.
- Felgueiras Gayo & Carvalhos de Basto, Nobiliário das Famílias de Portugal, Braga, 1989.
- José Augusto de Sotto Mayor Pizarro, Linhagens Medievais Portuguesas, 3 vols., Porto, Universidade Moderna, 1999.
- Manuel Abranches de Soveral, "Origem dos Souza ditos do Prado", in Machado de Vila Pouca de Aguiar. Ascendências e parentescos da Casa do Couto d'Além em Soutelo de Aguiar, Porto, 2000.