2 Chronicles 27:6

וְעָרִים בָּנָה בְּהַר־יְהוּדָה וּבֶחֳרָשִׁים בָּנָה בִּֽירָנִיּוֹת וּמִגְדָּלִֽים

Moreover he built cities in the hill-country of Judah, and in the forest he built castles and towers.

וְהוּא נִלְחַם עִם־מֶלֶךְ בְּנֵי־עַמּוֹן וַיֶּחֱזַק עֲלֵיהֶם וַיִּתְּנוּ־לוֹ בְנֵֽי־עַמּוֹן בַּשָּׁנָה הַהִיא מֵאָה כִּכַּר־כֶּסֶף וַעֲשֶׂרֶת אֲלָפִים כֹּרִים חִטִּים וּשְׂעוֹרִים עֲשֶׂרֶת אֲלָפִים זֹאת הֵשִׁיבוּ לוֹ בְּנֵי עַמּוֹן וּבַשָּׁנָה הַשֵּׁנִית וְהַשְּׁלִשִֽׁית

He fought also with the king of the children of Ammon, and prevailed against them. And the children of Ammon gave him the same year a hundred talents of silver, and ten thousand measures of wheat, and ten thousand of barley. So much did the children of Ammon render unto him, in the second year also, and in the third.

וְיֶתֶר דִּבְרֵי יוֹתָם וְכָל־מִלְחֲמֹתָיו וּדְרָכָיו הִנָּם כְּתוּבִים עַל־סֵפֶר מַלְכֵֽי־יִשְׂרָאֵל וִיהוּדָֽה

Now the rest of the acts of Jotham, and all his wars, and his ways, behold, they are written in the book of the kings of Israel and Judah.

בֶּן־עֶשְׂרִים וְחָמֵשׁ שָׁנָה הָיָה בְמָלְכוֹ וְשֵׁשׁ־עֶשְׂרֵה שָׁנָה מָלַךְ בִּירוּשָׁלִָֽם

He was five and twenty years old when he began to reign, and reigned sixteen years in Jerusalem.