Princes of the Holy Roman Empire
In some of the Imperial States that were known as "Land", the name of such estates assembly was "Landtag", analogous to the "Reichstag" (Imperial Diet), which mainly comprised most of the Princes of the Holy Roman Empire plus "Reichsgrafen", Imperial prelates and Free imperial cities. The precise composition obviously varied greatly, and could change over time, as the result of privileges granted or lost, entities split or merged, border changes "et cetera".