House of Gorizia
In 952 King Otto I of Germany ceded Istria together with the vast March of Verona and Aquileia to the Dukes of Bavaria. From 976 onward Verona was ruled by the Dukes of Carinthia, until in 1040 King Henry III established the separate March of Istria, which thereafter was successively controlled by various noble dynasties such as the Bavarian House of Andechs (temporarily ruling as the Dukes of Merania). In 1208/09 it fell to the Patriarchs of Aquileia, while large parts of the estates were held by the comital House of Gorizia.