The contribution focuses on a deed issued on 1 October 1216 in the new castle at Trixen/Trušnje, Austrian Carinthia, with which Albert of Marenberg authorised Bernard of Smlednik to offer, for the good of his soul and that of his wife, his farm at Zbilje on the altar of Holy Mary of the Benedictine Monastery in Gornji Grad. This is the old-est known reference to the small village of Zbilje in written sources. Many historians erroneously deemed Albert of Marenberg the castellan of Šmarna gora by reading Marenberg (present-day Radlje ob Dravi) as »Marienberg« and equating it with Šmarna gora. The error, repeated by numerous writers, was finally clarified by Hans Pirchegger in 1962. The aforementioned deed from 1216 also contains the first mention of the new castle at Trixen/Trušnje, later named Niedertrixen/Spodnje Trušnje, which first appeared in written sources in 1251. In the continuation, the paper describes the sale of the village of Zbilje near Smlednik, which took place on 18 February 1311, when Oton from Jeterbenk sold it to Count Majhard Ortenburg for 45 Aquileian pfennigs, reserving the right to repurchase.