Charles Ellicott Commentary 2 Chronicles 27:1

"Jotham was twenty and five years old when he began to reign; and he reigned sixteen years in Jerusalem: and his mother`s name was Jerushah the daughter of Zadok." — 2 Chronicles 27:1 (ASV)

REIGN OF JOTHAM. (Compare to 2 Kings 15:32–38).

LENGTH AND CHARACTER OF THE REIGN.
PUBLIC WORKS (2 Chronicles 27:1–4).

Jotham was twenty and five years old. —Word for word as 2 Kings 15:33, only adding Jotham.

Jerushah, the daughter of Zadok. —Perhaps the high priest Zadok of 1 Chronicles 6:12. (Compare to 2 Chronicles 22:11.)