Ravensberg was chosen so we didn't need to add a micro-state OPM. Sure, Lippe lasted a long time, but so did many micro-states in the HRE. More relevant is, did they ever do anything of importance? Did anything relevant ever happen in their territories?
Anyway an independent Lippe would usually just be conquered by whoever gets in first.
Anyway an independent Lippe would usually just be conquered by whoever gets in first.