Tirhakah
Tirhakah is named in the Hebrew scriptures as a king of Ethiopia whose advance against Assyria intersects Hezekiah's confrontation with Sennacherib. He appears at the same narrative juncture in two parallel accounts, each placing his approach as the trigger for Sennacherib's renewed pressure on Jerusalem.
A King of Ethiopia
The first notice falls inside the long Sennacherib narrative. When Assyria's king is told "of Tirhakah king of Ethiopia, Look, he has come out to fight against you, he sent messengers again to Hezekiah, saying," (2Ki 19:9). The information about Tirhakah's march is what prompts Sennacherib's second embassy to Jerusalem; the king of Ethiopia is not himself an actor inside the Hezekiah narrative but a moving threat in the background that reshapes Sennacherib's posture.
The Isaiah parallel preserves the same identification and the same narrative function: "And he heard it said concerning Tirhakah king of Ethiopia, He has come out to fight against you. And when he heard it, he sent messengers to Hezekiah, saying," (Isa 37:9). Tirhakah is again a name attached to a single fact — that he has come out to fight against Assyria — and it is that fact, reaching Sennacherib's ear, that produces the renewed messengers to Hezekiah.
The two passages together give the umbrella its full content: Tirhakah is a king of Ethiopia, his approach is reported to Sennacherib, and the report alters Sennacherib's handling of Hezekiah. Beyond that the text does not go.