The church dedicated to St. Mary of the Castle is probably the oldest in Udine, judging from extant fragments dating back to the Lombard era. It lost its parish status in 1263, when it was annexed to the larger parish of Saint'Odorico (now the cathedral). It has been renovated many times over the centuries: the façade, for example, was entirely rebuilt after the 1511 Idrija earthquake. Its three naves preserve the suggestive atmosphere of silence and contemplation, which is often found in old churches. The Venetian Governor, Tommaso Lippomano, commissioned the Venetian Gothic portico with steps and ramps leading down the hill in 1487.