Triumvir
The Cyclopedic Law Dictionary · Walter A. Shumaker and George Foster Longsdorf; ed. James C. Cahill · 1922
The Cyclopedic Law Dictionary
A trithing man or constable of three hundred.
Cowell.
TRIUMVIRI (or TREVIRI, or TRESVIRI) capitales (Lat.) In Roman law. Officers who had charge of the prison, through whose intervention punishments were inflicted. Sallust, in Catilin. They had eight lictors to execute their orders.
Vicat.