Shalmaneser V and Sargon II
The revolt of Israel against Assyria during the days of King Hoshea, last king of Israel, brought on a siege by the Assyrians (1 Kings 17). The siege was led by Shalmaneser V, King of Assyria (there is no known relief depiction of Shalmaneser V). During the siege, he died. Sargon II replaced Shalmanezer V as King of Assyria, who finished the siege and sacked Samaria.
Sargon II (right) and the crown prince, Sennacherib