Baalis
Baalis (, Ba‘ălīs; Ammonite: 𐤁𐤏𐤋𐤉𐤔𐤏, B‘LYŠ‘) is the name given in the Book of Jeremiah for the king of Ammon. He instigated the murder of Gedaliah, the Babylonian-appointed Jewish governor of Jerusalem. Sources 
https://web.archive.org/web/20061022182148/http://www.robert-deutsch.com/en/monographs/m7/

Kings of Ammon
Monarchs in the Hebrew Bible