Immanuel or Emmanuel is a Hebrew name that appears in the Book of Isaiah as a sign that God will protect the House of David.
Christ Emmanuel, Christian icon with riza by Simon Ushakov, 1668. According to the Gospel of Matthew, Immanuel refers to Jesus Christ.
Ahaz an abbreviation of Jehoahaz II, "Yahweh has held" was the twelfth king of Judah, and the son and successor of Jotham. Ahaz was 20 when he became king of Judah and reigned for 16 years.
Uzziah, Jotham, and Ahaz, from the Sistine Chapel ceiling
Ahaz, Hezekiah, and Manasseh, by Lucas van Leyden
After the prophet Oded rebukes the Israelite army for its mistreatment of the captives from Judah, the men of Ephraim care for the captives and return them to their kinsfolk at Jericho. (2 Chronicles 28:8–15)