KJV
And when they were departed from him,
(for they left him in great diseases,) his own servants conspired against him
for the blood of the sons of Jehoiada the priest, and slew him on his bed,
and he died: and they buried him in the city of David, but they buried him
not in the sepulchres of the kings.
BSB
And when the Arameans had withdrawn, they left Joash severely wounded. His own servants conspired against him for shedding the blood of the son of Jehoiada the priest, and they killed him on his bed. So he died and was buried in the City of David, but not in the tombs of the kings.