sentences:  The newly founded bank provided a new source of income for the Archhospital of Santo Spirito (founded 1201), whose financial difficulties had been increasing throughout the 16th century, and in 1607 the bank began supervising the finances of the hospital, which owned the bank.From February 20, 1606 to 1923, the Bank of the Holy Spirit provided capital for churches and hospitals constructed in Rome, and other commercial purposes.The bank lent funds to several public works projects, including the Trajan aqueduct project (begun 1608).