Considering the minimum use of the Slovene language in administrative matters till the mid- 19th century, it comes as no surprise that until recently there was no evidence of land registers or registers of tributes written in the Slovene language. It is only from a marginal note discovered some ten years ago that we know of the existence of a lost Slovene land register dating back to the first third of the 17th century. Taking into account two other discoveries, the collection of land registers and similar feudal inventories written in the Slovene now encompasses three specimens, all of them rather modest as to their contents, form and purpose. Each of them having characteristics of its own, the article aims to analyse circumstances and reasons for their creation and calls attention to the so-called Kajkavian-Prekmurje land registers created between 1768 and 1775. These are printed forms for individual villages in Prekmurje, a region on the fringe of the Slovene territory that was once part of Hungary. The language of these land registers, scattered around various institutions throughout Slovenia and Hungary, is yet to be thoroughly researched and appropriately denominated.