II Kings 14:17 Midrash

וַיְחִ֨י אֲמַצְיָ֤הוּ בֶן־יוֹאָשׁ֙ מֶ֣לֶךְ יְהוּדָ֔ה אַֽחֲרֵ֣י מ֔וֹת יְהוֹאָ֥שׁ בֶּן־יְהֽוֹאָחָ֖ז מֶ֣לֶךְ יִשְׂרָאֵ֑ל חֲמֵ֥שׁ עֶשְׂרֵ֖ה שָׁנָֽה׃

And Amaziah the son of Joash king of Judah lived after the death of Jehoash son of Jehoahaz king of Israel fifteen years.

Read midrashic interpretation of II Kings 14:17: and classical rabbinic exegesis.