The flag and coat of arms in the infobox have been created by Wiki editors and are based on the emblem and colors of the Daerlanian military.
Throughout its history as an imperial land, Daerlan formed at least seven cavalry brigades. During the Northern Wars, the Daerlanian forces represented the backbone of the Nilfgaardian Army: the 7th Daerlanian Cavalry Brigade was without a doubt the most noteworthy. Few, however, heard of the Daerlan Foot Soldiers, the unloved companion infantry unit contemptuously referred to as "the Seventh's bastards." Reliant on boot leather in a milieu that honored only horseshoes, these men nevertheless served as best they could, one step at a time.
In Polish edition, name Daerlan appears as a part of demonym Daerlańczyk and adjective daerlański, therefore it is unclear whether the region's name in Polish is Daerlan or Daerl. It is possible that both names are correct though, for example Daerl for a capital city and Daerlan for a land.
- Because these lands do not appear in the list of conquests of the Empire in The Witcher Role-Playing Game, it can be assumed that they were incorporated before the Empire was established.