KJV:
At that time Merodachbaladan, the son of Baladan, king of Babylon, sent letters and a present to Hezekiah: for he had heard that he had been sick, and was recovered.
NASB:
At that time Merodach-baladan son of Baladan, king of Babylon, sent letters and a present to Hezekiah, for he heard that he had been sick and had recovered.