Lease of goods by Iohana Ferraria, abbess of the monastery of Saint Catherine of Piacenza, in The Documentary Archaeology of Late Medieval Europe, ed. by D. L. Smail, G. H. Pizzorno, & L. Morreale

Iohana Ferraria, abbess of the monastery of Saint Catherine of Piacenza, rented to the priest Raphael de Oxelaria, prebendary of the church of Saint Antonino of Piacenza, some domestic objects worth ten florins.