In Wiślica, there are two fortified settlements from early Middle Ages: 1) the site “on the meadows”, located outside the perimeter of the town on a gypsum rock outcrop, surrounded by the woodland that overgrows the oxbow lake of the Nida River and 2) the so-called “Regia” – situated in the north-western part of the modern-day town where archaeologists discovered a Romanesque residential and sacral complex composed of two palatia (buildings A and C) and two rotundas (buildings B and D). The overall view of the development of Wiślica shows its importance in the Middle Ages. However, in consequence of lacking pertinent data that would allow us to narrow down the dating of archaeological material from the oldest phases of both fortified settlements, determining which of them was established earlier, which one was destrioid during the invasion in 1135 or whether they functioned simultaneously is, still open question, as well as the question about thier function.