Subiaco (so͞obyä`kō), town (1991 pop. 9,004), Latium, central Italy, in the Apennines, at the confluence of the Aniene and the Acquaviva rivers. It is an agricultural, industrial, and tourist center. St. Benedict of Nursia retired to Subiaco c.497 and lived there with his disciples until 529, when he moved to Monte Casino. The Benedictine abbey, which grew out of the 12 monastic communities founded there by the saint, rose to great wealth and political power in the Middle Ages. St. Scholastica, St. Benedict's sister, established in Subiaco the first monastic community for women. In 1464 the first printing press in Italy was established in Subiaco.