Maria Pia de Saxe-Coburgo e Bragança (1907 - 1995). Daughter of Maria Amélia Laredó e Murça. She claimed to be the daughter of Carlos I of Portugal. She also claimed that Carlos gave her the rights of a legitimate princess of Portugal. She tried to claim that she was the rightful Queen of Portugal, but this came to nothing.
Ines de Castro (1325 - 1355). Mistress and possible wife of Pedro I of Portugal. They had three children. he may have married her 1354, and his father had her murdered a year later. Pedro declared their marriage legal when he became king and declared her his queen.