The Palace of the Constables of Castile, popularly known as Casa del Cordón (The house of the cord), is a palace from the XV century that was built in the old part of Burgos. Its founder was the Constable of Castille, don Pedro de Velasco. A strong mansion flanked by two towers crowned by a cresting.Inside, we should highlight the courtyard with portico with two floors of galleries and a great Neogothic staircase, by the architect Vicente Lampérez. The courtyard is a result of the second phase of construction, which takes from 1484 to 1497, and inside its galleries we can find the interior rooms, following the model of Renaissance palace of that time. It is known as Casa del Cordón because of the great Franciscan stone cord or rope the surrounds its door, surrounding at the same time the royal arms and the Casa de Velasco, Mendoza y Figueroa’s arms. Inside, the great Classic courtyard with a gallery of three floors attracts the attention. Felipe el Hermoso died in this palace, the Catholic Kings met Christopher Colombus here when he came back from his second trip to America, and the Courts met in 1515.