Luís Filipe, Prince Royal of Portugal, Duke of Braganza (21 March 1887 – 1 February 1908).
Luís Filipe Maria Carlos Amélio Francisco Víctor Manuel António Lourenço Miguel Rafael Gabriel Gonzaga Xavier Francisco de Assis Bento was born in Lisbon, the elder son of Carlos, Prince Royal of Portugal (later King Carlos I of Portugal), and Princess Amélie d'Orléans, a member of the House of Braganza.
Two years after his birth, Dom Luís Filipe inherited all his father's royal princely titles when his father became king. He was himself re-styled Prince Royal, and at the same time inherited the Dukedom of Braganza (as 21st Duke), which brought with it the largest private fortune in Portugal at that time, completely at the disposal of the heir to the Portuguese crown. In English, he is sometimes, but inaccurately, called "Crown Prince of Portugal".
In 1907, the Prince Royal acted as regent of the kingdom while his father was outside the country. The same year he made a very successful official visit to the Portuguese colonies in Africa, the first member of the royal family ever to visit them.