Berean Study Bible (BSB) - Jeremiah 39:6 >

There at Riblah the king of Babylon slaughtered the sons of Zedekiah before his eyes, and he also killed all the nobles of Judah.

Jewish Publication Society of America Version (JPS1917) - Jeremiah 39:6 >

Then the king of Babylon slew the sons of Zedekiah in Riblah before his eyes; also the king of Babylon slew all the nobles of Judah.