John Gill Commentary Jeremiah 52:10

"And the king of Babylon slew the sons of Zedekiah before his eyes: he slew also all the princes of Judah in Riblah." — Jeremiah 52:10 (ASV)

And the king of Babylon slew the sons of Zedekiah before his eyes Or, however, ordered them to be slain; (See Gill on Jeremiah 39:6); he slew also all the princes of Judah in Riblah ; who, together with the king's sons, were taken with him; or, however, were taken in Jerusalem, and brought to Riblah; which of them is not certain, very probably the former.