Analysis of information sources in references of the Wikipedia article "First Schleswig War" in English language version.
These three southern regions of the Danish 'Gesamtstaat' or 'Helstaten' (common name for the union of the kingdom and the duchies) made up about one half of the monarchy's economic power.
To prevent a division of the Danish kingdom, the Danish 'Royal Law' (Lex Regia) was – illegaly [sic] – introduced in the duchies.
These three southern regions of the Danish 'Gesamtstaat' or 'Helstaten' (common name for the union of the kingdom and the duchies) made up about one half of the monarchy's economic power.
To prevent a division of the Danish kingdom, the Danish 'Royal Law' (Lex Regia) was – illegaly [sic] – introduced in the duchies.