Nestled away in a little Italianesque style square in the center of Vienna is the Franciscan Church of Vienna, also known as the Church of St. Jerome (Hieronymus). Originally, a 14th century Gothic church and convent, also dedicated to St. Jerome, occupied this space. Archduke Ernst in 1589, gave this existing structure to the Franciscans. Father Bonaventura Daum was responsible for the construction of the new church which began in 1603 and was completed in 1611. The oldest church organ in Vienna, designed by Johann Wockerl in 1642, is housed here. The catacombs beneath the church (and not open to the public) reportedly house the bodies of 1000 people.