The land registration was commissioned during the reign of King
Valdemar II of Denmark (1202–1241). The registry contains notes for practical use in the Royal Chancery of the
Kingdom of Denmark. It consists of a collection of information regarding Royal income and properties. The book is one of the most important sources of information in regard to social conditions and place names during the
Middle Ages. Many locations in Denmark (which included Schleswig, Scania, Halland and Blekinge), northern
Germany, southern
Sweden and northern
Estonia were recorded in writing for the first time. ==See also==