Smith's Bible Dictionary (1863)
(friend of the king). The names of Sherezer and Regem-melech occur in an obscure passage of Zechariah. (Zechariah 7:2) They were sent on behalf of some of the captivity to make inquiries at the temple concerning fasting (B.C. 617.)
Hitchcock's Bible Names (1869)
he that stones the king; purple of the king