The original duchy was located in the south-western part of Lower Silesia on the current lands of Lwówek Śląski County with the southern part of the duchy covering most of the modern Jelenia Góra County.

Some other important towns located within the lands of the duchy were: Wleń, Gryfów Śląski (German: Greiffenberg) and Jelenia Góra (Hirschberg).

[6] The main factor of the rapid development of the area was gold surrounding Lwowek Slaski and the trade road Via Regia.

[7] After the exhaustion of the gold mines the citizens started to earn from cloth producing, weaving, crafts, trade and sandstone processing.

He was the youngest son of the Silesian prince Boleslaw II Rogatka and Hedwig, daughter of Henry I, Count of Anhalt.

Now in the place of the castle stands the oldest brewery in Poland which started producing beer in 1209.