Regem-melech

A man, in the time of Exile and Return · named in 1 verse

the name means king's heap Strong's Lexicon

Regem-melech was one of the messengers sent to the house of God to inquire of the Lord.

From Easton's Bible Dictionary

Friend of the king, one of the two messengers sent by the exiled Jews to Jerusalem in the time of Darius (Zech. 7:2) to make inquiries at the temple.

Easton's Illustrated Bible Dictionary, 1897 — public domain, quoted in full and unedited.

First named at Zechariah 7:2.

Zechariah 7:2 Now the people of Bethel had sent Sharezer and Regem-melech, along with their men, to plead before the LORD