sentences:  This building was erected by the Jesuits in the mid 18th century to house a seminary first founded in 1689.After the Jesuits were expelled in 1767, it was known as the St. Ambrose Seminary and in 1774 it was opened under the name St. Carlos and St. Ambrosio Royal School Seminary.It is also called St. Carlos Seminary in honor of King Charles III of Spain, who declared it Conciliate in 1777, equaling it to the Spanish seminaries.