A Regimentarz (from Latin: regimentum) was a military commander in Poland, since the 16th century, of an army group or a substitute of a Hetman. They were nominated by the King of Poland or the Sejm.
In the 17th century a Regimentarz was also the commander of Pospolite ruszenie in cases where a castellan or a voivode could not command personally.
Regimentarz generalny (General) were the commanders of Confederations.1.
References
References
- Mała Encyklopedia Wojskowa [Small Military Encyclopedia] (in Polish). Vol. III (1st ed.). 1967.