Vztah dvou slezských hradů Fürstenberg a Fürstenstein (Stary Książ a Książ). Historicko-toponomastická studie

The article attempts to explain the unique situation in Silesia hosting since the mid-14th century two castles with very similar names, right next to each other, namely there were Fürstenberg and Fürstenstein. In addition to discussing the state of research and diagnosing the related stalemate and analyzing source references to both castles, above all, it shows a general background for the similar proximity and succession of castle toponyms mainly in Bohemia and Moravia, while encountering many analogies to the situation from Silesia. This Bohemian and Moravian context is also justified because the name Fürstenstein appears shortly after Bolko II concluded succession agreements with Charles IV in 1353. The construction of the castle stems from these agreements which assumed a gradual division of power in the duchies of Świdnica and Jawor between the duke and his wife, and royal officials representing the rights to the territories transferred through Anna of Świdnica to the House of Luxembourg and the Bohemian Crown. On top of these considerations, the origin of the name of Svojanov Castle in Moravia (originally Fürstenberg) and Cisy Castle in Silesia is proposed.