Vol. 4: A 1209 usque ad 1300

Notices from contemporary narrative sources regarding the Diet of Augsburg held in January 1209.

Otto IV, King of the Romans, confirms the rights of the Patriarchate of Aquileia over the Duchy of Friuli.

Henry of Andechs-Merania, the margrave of Istria, donates a property of his to the monastery of Saint Lawrence in Wilten (Innsbruck), for the salvation of his soul and the souls of his parents.

Henry of Andechs-Merania, the margrave of Istria, donates properties to the monastery of Saint Mary and Saint Hermagoras in Obernbug for the salvation of his soul.

Otto IV, Emperor of the Holy Roman Empire, confirms the donation of the Margraviate of Istria to the Patriarchate of Aquileia.

Aquileian Patriarch and Istrian Margrave Wolfger confirms the temporal jurisdictions that the Church of Poreč enjoys by way of donations issued by previous patriarchs of Aquileia; 13^th-century forgery.

Aquileian Patriarch and Margrave of Istria and Carniola Gregory of Montelongo invests Henry of Pazin and his heirs, represented by Cono of Momjan, with several fiefs which included Lupoglav and the adjacent village Gorenja Vas in Istria.

The Commune of Koper authorizes ten of its citizens to represent the Commune in reaching a peace treaty between the patriarch of Aquileia and the count of Gorizia.

A peace treaty is reached between Aquileian Patriarch Raymond della Torre and his advocate Albert, Count of Gorizia, together with his allies which included the Commune of Koper and Piran.