2 Chronicles 25:25-28 NIV

25 Amaziah son of Joash king of Judah lived for fifteen years after the death of Jehoash son of Jehoahaz king of Israel.
26 As for the other events of Amaziah's reign, from beginning to end, are they not written in the book of the kings of Judah and Israel?
27 From the time that Amaziah turned away from following the LORD, they conspired against him in Jerusalem and he fled to Lachish1, but they sent men after him to Lachish and killed him there.

References for 2 Chronicles 25:27

28 He was brought back by horse and was buried with his fathers in the City of Judah.