Azzone Francesco Castelbarco

Azzone Francesco Castelbarco (c. 1327–1410) was the last lord of the Dossomaggiore branch of his house, holding Avio, Ala and Brentonico. In 1388, after the Rovione line died out, Bishop Albert enfeoffed him with Castel San Giorgio.

In 1410, the year of his death, he willed at Avio that if his only heir Ettore died, the vicariates would pass to Venice. When Ettore died in 1411 Venice occupied the lands, beginning the era of the Four Vicariates.