Jehoshaphat = "Jehovah has judged"
son of king Asa and himself king of Judah for 25 years; one of the best, most pious, and prosperous kings of Judah, symbolical name of a valley near Jerusalem which is the place of ultimate judgment; maybe the deep ravine which separates Jerusalem from the Mount of Olives through which the Kidron flowed
Combined with qid.ron (קִדְרוֹן "Kidron" H6939)