found: Braunfels, W. Die Kunst im Heiligen Römischen Reich Deutscher Nation, c1979- (subj.)v. 1, t.p. (Heiligen Römischen Reich Deutscher Nation)
found: Rudolʹfint︠s︡y, 1996:p. 3 (Rudolʹfa II--cheshskogo koroli︠a︡ i imperatora Svi︠a︡shchennoĭ Rimskoĭ Imperii (1576-1612))
found: Treuer, G.S. Gottlieb Samvel Treveri Commentatio de ivre statuum imperii, 1753:p. 1 (Imperium Romano Germanicum)
found: Britannica academic (online), viewed 26 Sept. 2016(Holy Roman Empire, German Heiliges Römisches Reich, Latin Sacrum Romanum Imperium, the varying complex of lands in western and central Europe ruled over first by Frankish and then by German kings for 10 centuries (800-1806); Francis II resigned the old imperial dignity on Aug. 6, 1806, ending the Holy Roman Empire)