Before the building was ceded to the Carthusian order, it was the recreational residence of Henry III of Spain, who decided to build this palace on one of his hunting reserves. The building was subsequently restored when his son King John II came to the throne, following a design by John of Cologne. Construction was finally completed in the reign of Queen Isabella, and the top architects, sculptures and painters of the time were employed for the job, including figures such as Simon of Cologne, Gil de Siloé and Pedro Berruguete. The Carthusian monastery became one of the treasures of the Gothic style of the late 15th century. http://www.spain.info/en_IN/que-quieres/arte/monumentos/burgos/cartuja_de_miraflores.html