During the reign of Pekah in Israel in the North, Ahaz began to reign as king of Judah in the South.

2 Kgs. 16:1-18; 2 Chr. 28:1-27 Ahaz (Judah/South) 735-715 B.C.
2 Kgs. 16:19-20

Hosea continues to prophecy during the reign of Ahaz

Hosea 8:1 - 10:15