There was also another reason for adoption of the monarchy, or more precisely, its maintenance. The Europeans, as much as the Africans and the Native Americans, came from monarchical societies. To remain under this form of government was a way of maintaining the traditions and identity of the Brazilian people, a people descended from those three distinct ethnic groups. The choice of a member of the House of Braganza came not just from the historical moment, but also from the fact that Prince Pedro descended from the pure male line of the Portuguese kings. The House of Braganza originated with Afonso, 1st Duke of Braganza, an illegitimate son of John I of the House of Aviz who, in turn, was the son of Peter I of the House of Burgundy, which was founded 300 years earlier in 1143 by Afonso Henriques, first king of Portugal. Thus, the strong popular appeal of the monarchy, and a tradition of more than three hundred years (or seven hundred if Portuguese history is considered), enabled Prince Pedro to take on the role of a symbol of national unity. The monarchical regime maintained on Brazilian soil "was a force of continuity and tradition".