Probably at the end of the 8th century (definitely not later than in the early 9th century), at the time of the Principality of Nitra, a Slavic castle with a wooden rampart was constructed with a huge area of 55,000 square metres.
おそらく8世紀の終わり（遅くとも9世紀初頭）のニトラ公国時代に、5万5000平方メートルの大面積を囲う木製の城壁を持つスラヴ式の城が建設された。