Landgravine

Landgrave (Dutch: landgraaf, German: Landgraf; Swedish: lantgreve, French: landgrave; Latin: comes magnus, comes patriae, comes provinciae, comes terrae, comes principalis, lantgravius) was a noble title used in the Holy Roman Empire, and later on in its former territories. The German titles of Landgraf, Markgraf ("margrave"), and Pfalzgraf ("count palatine") are in the same class of ranks as Herzog ("duke") and above the rank of a Graf ("count").

The English word landgrave is the equivalent of the German Landgraf, a compound of the words Land and Graf (German: count).

The title referred originally to a count who had imperial immediacy, or feudal duty owed directly to the Holy Roman Emperor. His jurisdiction stretched over a sometimes quite considerable territory, which was not subservient to an intermediate power, such as a Duke, a Bishop or Count Palatine. The title survived from the times of the Holy Roman Empire (first records in Lower Lotharingia from 1086 on: Henry III, Count of Louvain, as landgrave of Brabant). By definition, a landgrave exercised sovereign rights. His decision-making power was comparable to that of a Duke.

...
Wikipedia