Prince
The title generally applied to the chief men of the state. The “princes of the provinces” (1 Kgs 20:14) were the governors or lord-lieutenants of the provinces. So also the “princes” mentioned in Dan 6:1, Dan 6:3, Dan 6:4, Dan 6:6, Dan 6:7 were the officers who administered the affairs of the provinces; the “satraps” (as rendered in R.V.). These are also called “lieutenants” (Esth 3:12; Esth 8:9; R.V., “satraps”). The promised Saviour is called by Daniel (Dan 9:25) “Messiah the Prince” (Heb. nagid); compare Acts 3:15; Acts 5:31. The angel Micheal is called (Dan 12:1) a “prince” (Heb. sar, whence “Sarah,” the “princes”).
From Easton’s Bible Dictionary (1897), by Matthew George Easton.