Page "Wałbrzych" Paragraph 7

Wieczerka places the city near Nowy Dwór () built by Bolko I the Strict, of the Polish royal Piast dynasty ( Silesian branch ) of Świdnica-Jawor ().

The city website however mentions the building of the castle as a separate event in 1290.

A part of Nowy Dwór castle, a manor built in the 17th century, was destroyed in the 19th century.