assumed to have commissioned the frescoes in Frankfurt city hall in 1414. As has been noted from an early time, this representation of the "imperial constitution" does not in fact represent the actual constitution of the Holy Roman Empire, as some imperial cities appear as "villages" or even "peasants". E.g. the four "peasants" are Cologne, Constance, Regensburg and Salzburg. The Burggrave of Stromburg (or Straburg, Strandeck, and variants) was an unknown entity even at the time. The representation of imperial subjects is also far from complete. The "imperial quaternions" are, rather, a more or less random selection intended to represent pars pro toto the structure of the imperial constitution. See also Princes of the Holy Roman Empire List of Imperial Diet participants (1792) List of states in the Holy Roman Empire Estates of the realm Stem duchy Feudalism in the Holy Roman Empire Heerschild References External links Velde, F. R. (2003), Royal Styles Velde, F. R. (2004), The Holy Roman Empire Legal history of the Holy Roman Empire Monarchy in Germany