Palacio del Virrey (Palace of the Viceroy), also known as Casa Real de los Virreyes (Royal House of the Viceroys) is the early name of the National Palace of Mexico, current seat of the federal executive branch. Originally was a large-sized fortress-palace that later was assigned as the Viceregal Palace, that was very internal modified and was housed other royalty after country's Independence. It was originally one of the large-sized "Old Houses" built by Spanish Conquistador Hernán Cortés after his Triple Alliance defeat, that was built on Moctezuma's "New Houses" ruins, belong the present-day Historic center's Zócalo, later the Spanish Crown was chosen the building to set the Viceregal Palace due was belong to the main plaza, without changes in its structure and use since the Colonial era to the country's Independence.