From BiblePortal Wikipedia

Fausset's Bible Dictionary [1]

 Zechariah 6:14 ("favor"), the same person as Josiah ("God founds or supports"),  Zechariah 6:10.

International Standard Bible Encyclopedia [2]

hen ( חן , ḥēn , "favor"). In   Zechariah 6:14 , English Versions of the Bible reads, "And the crowns shall be to Helem ... and to Hen the son of Zephaniah." But as this person is called Josiah in  Zechariah 6:10 , the Revised Version, margin "and for the kindness of the son of Zephaniah" is probably right, but the text is uncertain. See Josiah .