Katharina of Hohenlohe-Waldenburg-Schillingsfürst, who had recently joined the convent as a novice, denounced its activities to the Holy Office, accusing mistress of novices Maria Luisa, among others, of "sexual transgressions, heretical practices and homicidal schemes". Katharina noted the veneration of Firrao as well as Maria Luisa herself; the latter claimed to receive messages from Mary, and slept with several of the novices. Other transgressions included alleged affairs between the women and priests. According to Katharina, when she challenged convent practices, she became the victim of an attempted poisoning. As the investigation proceeded the Vatican removed the sisters from the convent and sent Maria Luisa into "forced isolation". It emerged that the Jesuit priest who as the "spiritual father" of the nuns had been accustomed to administer the sacrament of Penance had entered into sexual relations with Maria Luisa. Styling himself Giuseppe Peters, his real name was Joseph Kleutgen, an influential German theologian. He was convicted as a heretic for his fostering of the cult of Agnese Firrao and sentenced to three years of imprisonment. Pope Pius IX reduced the sentence to two years. Later Kleutgen was instrumental in the drafting of the dogma of papal infallibility. The details of the affair became known when discovered by researchers in 1976. In 1861 Pope Pius IX gave the building to a group of Benedictine monks; they adopted it for a missionary college and replaced its façade when it collapsed the following year. Side altars were added to the church as well. After 1870, the church and the monastery were expropriated by the Italian State, but later the church and part of the convent were returned to the Benedictines. Initially, the monastery was used as a missionary college to train monks for overseas work. The church is currently an abbey and the curial house of the Subiaco Cassinese Congregation. Architecture The current building, parts of which date to the 17th century, is a domed basilica. It is cross-shaped, with a chapel to either side of the nave. The church includes "rich gold stucco decorations and frescos depicting the life of Mary". What is now the main refectory at Sant’Ambrogio was at one point the sisters’ chapter house. Relics In the church deposited are the relics of St Polycarp, the bishop of Smyrna. See also References Sources (first published in German as: Die Nonnen von Sant'Ambrogio. 2013). External links Official church homepage Roman Catholic