The Duchy of Daenia is a region in the province of High Rock, and is located on the coast of the Iliac Bay. It borders Ykalon to the north, Urvaius to the east, Anticlere to the south, Shalgora to the southwest, and the Ilessan Hills to the west. The regional capital is Daenia City, the dominant vampire bloodline is the Thrafey family, and the patron deity is Julianos. Daenia is home to the Beldama witch coven. During the Miracle of Peace a devastating wildfire started in the region. Since then, the region has been under the control of Wayrest.
- Dark Brotherhood: Located in Chestermont, Daenia, Graybrone Court, Graylech, Midmoth, Penpath, Vanwych, Westtry, and Wilderwark.
- Fighters Guild: Located in Aldingcart, Daenia, Graybrone Court, Horton, Horwick, Midmoth, Penpath, Tunford, and Westtry.
- Mages Guild: Located in Charencastle, Daenia, Graybrone Court, Graylech, Horton, Horwick, Longwark, Midmoth, Penpath, Ripbrugh, Tunford, Vanwych, and Westtry.
- Thieves Guild: Located in Blackcart, Chestermont, Crossbridge, Daenia, Horton, Knightshope, Longwark, Midmoth, Penpath, Tamwark, Tunford, Westtry, and Wilderwark.