Most likely, Tolmin became the properly of the Aquileian Patriarchy in the ll"1 century. At the end of 14lh century, it fell forfeit to Cividale and indirectly, to a body of the city's noblemen called the "konzorti". The property of Tolmin remained in the possession of the "konzorti" throughout the rule of Venice and on into the Austrian rule up until the 17th century, with the execpsptlion only of the duration of the Auslro-Venetian war. Following the "konzorti", the property was owned by the Dornbergs, followed by the Bicuncrs, after which it was held by the Coroninis for an entire 200 years. The property of Tolmin encompassed a large part of the Upper Posočje region and the river basins of the Idrijca and the Haca. Around 1600. Idrija was separated from the properly, while all the villages west of Kobarid were annexed to it. Initially, the landed property, or "gaslaldija", was divided into (sizeable) administrative units called "dekanija", while later sources mention only smaller parishes, which also enjoyed a degree of autonomy. During the time of the abolishment of the feudal system in the middle of the 19 century, a number of land registers and other registers were created for administrative purposes. More than 50 of these have been pretheserved to dale, most of which date back to the time of the Coronini counts. These registers are kept in the Archives of Gorizia. Ljubljana. Graz and Trieste (Trst).