Luís Filipe, Prince Royal of Portugal

D. Luís Filipe, Prince Royal of Portugal, Duke of Braganza, (; 21 March 1887 – 1 February 1908) was the eldest son and heir-apparent of King Carlos I of Portugal. He was born in 1887 while his father was still Prince Royal of Portugal, and received the usual style of the heirs to the heir of the Portuguese crown: he was then at birth 4th Prince of Beira, with the subsidiary title of 14th Duke of Barcelos. After his grandfather king Dom Luís I of Portugal died, he became Prince Royal of Portugal, with the subsidiary titles of 21st Duke of Braganza, 20th Marquis of Vila Viçosa, 28th count of Barcelos, 25th count of Ourém, 23rd count of Arraiolos, 22nd count of Neiva; he was later created Knight Commander of the Order of the Immaculate Conception of Vila Viçosa, Knight of the Order of the Garter, and Knight of the Order of the Golden Fleece.