The castle is mentioned for the first time in a 1053 document as
Castellum Ava. In the 12th century it was owned by the Castelbarco family, who ceded it to the
Republic of Venice in 1411. The latter enlarged it and added a chapel dedicated to
St. George, together with a façade showing the
doge's coats of arms. In 1509 the castle was conquered by the troops of
Maximilian I of Austria who, after painting his insignia on the façade, gave it to the counts of Arco. After several changes of property, in the 17th century the counts of Castelbarco bought it back. ==Architecture==