פירוש על שופטים 4:2

Charoshes Hogoyim. The name of a city, so entitled because it was a stronghold, and the seat of authority.¹This is based on Targum Yonasan, who translates חֲרֹשֶׁת הַגּוֹיׅם as “the stronghold, metropolis of nations”.

Before Joshua captured Chatzor, as its written in Joshua 11:1, he smote it with a sword, but not its king. After he was captured (he saved himself?) and the king of Charoshet goyim, it was a place where all froms of iron work was done.