Page "Wałbrzych" Paragraph 6

Some German publications argue that no archaeological or written records support a Slavic settlement or the existence of a castle before the late 13th century.

and that during the Middle Ages the area of Wałbrzych was part of the unpopulated Silesian Przesieka, According to a writing from 1667 by jurist and historian Ephraim Ignatius Naso, Wałbrzych already existed as a small village in 1191, a publication from German Empire from 1886 rejected this claim, and a German historian Hugo Weczerka rejects it as well.

claiming the city founded between 1290 and 1293 and mentioned as Waldenberc in 1305.