the 15th to 18th centuries In the 15th century the Colonia family, originally from Cologne, incorporated the open spires of the main facade (between 1442 and 1458), the dome over the transept and the Chapel of the Constables. In the 16th century, besides the modifications to several chapels, highlights the construction of a new dome by Juan de Vallejo (fl. c. 1518–1569) and Felipe Vigarny, who replaced the original cimborio (a domed crossing tower) constructed by Juan de Colonia (sunk after a hurricane). This cimborio is a pinnacled, two-storey octagonal richly decorated lantern. In the 18th century the construction began of the magnificent Churrigueresque Chapel of Saint Thecla (finished in 1734) (on the site of the original parish church), the Chapel of the Relics and the Sacristy. One of the most famous bishops of Burgos was the 15th-century scholar and historian Alphonsus a Sancta Maria. Restorations of the 19th and 20th centuries Burgos Cathedral owes its many works of art of the 13th to 18th centuries, especially to the fact that during the 19th and 20th centuries Outside the scope of the new cloister only was essential way reformed, after 1800, the chapel of the Santo Cristo or of Our Lady of the Remedies, located in the west of the old cloister. The renovation began with the transfer of the highly revered crucifix of the Holy Christ from the Convento de San Agustín to the chapel, thereafter, was called chapel of the Santo Cristo de Burgos. In the 1890s Vicente Lampérez y Romea, master architect of the cathedral from 1887, undertook an extensive restoration of this chapel, removing the plaster added of the walls and vaults and completely renovated the cover that gives the nave. also date from this restoration the neo-Gothic tracery windows, the blind arcades of the walls and most of the remaining architectural elements. Between 1899 and 1911 Lampérez also restored the called New cloister, getting essentially recover its original shape. In the cloister it had overbuilt a third level with small Baroque windows that this architect did eliminate, and, incidentally, he opened the original windows of the cloister that had been almost closed. The installation of ornamental windows following models and old techniques, represented the end of the restoration. While the upper body of the cloister hardly experienced any change, the lower cloister was remarkably restored. The forms of its rib, apparently late Gothic, are due