WEB
Yahweh struck the king, so that he was a leper to the day of his death, and lived in a separate house. Jotham the king’s son was over the household, judging the people of the land.
YLT
And Jehovah smiteth the king, and he is a leper unto the day of his death, and he dwelleth in a separate house, and Jotham son of the king is over the house, judging the people of the land.