Adoniram in Smiths Bible Dictionary

(lord of heights), 1Ki 4:6 by an unusual contraction ADORAM, 2Sa 20:24 and 1Kin 12:18 also HADORAM, 2Ch 10:18 chief receiver of the tribute during the reigns of David, 2Sa 20:24 Solomon, 1Ki 4:6 and Rehoboam. 1Ki 12:18 This last monarch sent him to collect the tribute from the rebellious Israelites, by whom he was stoned to death, (B.C. 1014-973.)

Link: https://bible-history.com/smiths/A/Adoniram/