House of Braganza-Saxe-Coburg and Gotha be the illegitimate daughter of King Carlos I of Portugal and claimed the right to the titles of Duchess of Braganza and to be the rightful Queen of Portugal. Maria Pia claimed that King Carlos I legitimized her through a royal decree and placed her in the line of succession, however no proof was presented to demonstrate this and the King similarly did not have the personal authority to do so. Maria Pia's paternity was never proven and her claim not widely accepted. House of Braganza-Saxe-Coburg and Gotha The House of Braganza-Saxe-Coburg and Gotha (also known as the House of
Princess Pia Maria of Orléans-Braganza Princess Pia Maria of Orléans-Braganza Princess Pia Maria of Orléans-Braganza (; 4 March 191324 October 2000) was a Princess and member of the House of Orléans-Braganza and the Brazilian Imperial Family. With the premature death of her father, Prince Luís of Orléans-Bragzna, in 1920, and the following year, the death of her grandmother, Isabel, Princess Imperial of Brazil, in 1921, Pia Maria's older brother Prince Pedro Henrique of Orléans-Braganza claimed the title Prince Imperial of Brazil in 1920, and the position of head of the Imperial House of Brazil in 1921. At the time of the latter claim, Prince Pedro