structure on this plaza is the Palacio de la Corregiadora. The Palacio de la Corregidora was originally called the Casas Reales y Cárceles (Royal Houses and Jails). Today it houses the government of the state of Querétaro. Its name comes from its most famous occupant, Josefa Ortiz de Domínguez, who was the wife of the mayor or corregidor of the city. Ortiz de Domínguez is a heroine of the Mexican War of Independence and the Conspiracy of 1810 that led to the start of the war which occurred here. Her final resting place is the Mausoleum of the Corregidora. The Church and ex-monastery of San Felipe Neri was built between 1786 and 1805. It was opened and blessed by Miguel Hidalgo y Costilla, who also officiated the first Mass. In 1921, this church was declared the Cathedral of Querétaro by Pope Benedict XV. The church is constructed of tezontle and has altarpieces of cantera stone. The facade shows the transition between Baroque and Neoclassical architecture, and is considered to be the last Baroque facade in the city. Inside the nave is sober, austere and completely Neoclassical. The old monastery complex now houses the Ministry of Urban Development and Public Works. It is more commonly referred to as the Palace of Conín. The Church and ex-convent of Santa Rosa de Viterbo is attributed to Alarife Ignacio Maraiano de las Casas and financed by José Velasquez de Lorea, finished in 1752. The church has twin entrances, which was common with convent churches. The two arches are decorated with mocking faces put there by Casas to those who did not think he could manage the building of the institution. The outside is flanked by scroll-shaped flying buttresses, which only serve as decoration and are unique to Querétaro. The tower has a unique shape and is topped with a pyramid-shaped crest. There is an inner doorway decorated in Churrigueresque style and an image of Saint Rose. Inside, the most outstanding feature is the pulpit inlaid with ivory, nacre, turtle shell and silver, and its altarpieces are gold covered in Querétaro Baroque style. The entrance to the sacristy contains paintings of José Velazquez de Lore and Sor Ana María de San Francisco y Neve. The convent complex was later amplified by Juan Caballero y Osio. The nuns began to dedicate themselves to primary education and by 1727 it became the Royal College of Santa Rosa.