Landgraviate of Hesse-Kassel
Garrett sits at the confluence of the Buffalo Creek and the Casselman River. The Casselman River is believed to be named for the Landgraviate of Hesse-Kassel or Hesse-Cassel in Germany. An imperial immediacy (German: "Reichsfreiheit" or "Reichsunmittelbarkeit") which was a privileged feudal and political status, a form of statehood, which a city, religious entity or feudal principality of minor lordship could attain within the Holy Roman Empire.