Which prophets mentioned Gog, in old time, before Ezekiel?

Ezekiel 38:16f  when I shall be sanctified in thee, O Gog, before their eyes.

  17 Thus saith the Lord GOD; Art thou he of whom I have spoken in old time by my servants the prophets of Israel, which prophesied in those days many years that I would bring thee against them?

Is it possible that the LORD spoke of him another way, or by another name?

After all, isn't Gog a chief prince, a celestial being, similar to the following, except on the wrong side?

Ezekiel 38:3 And say, Thus saith the Lord GOD; Behold, I am against thee, O Gog, the chief prince of Meshech and Tubal:

Daniel 10:13 But the prince of the kingdom of Persia withstood me one and twenty days: but, lo, Michael, one of the chief princes, came to help me; and I remained there with the kings of Persia.