When was Iron Cross - Marvel Comics created?

There isn't a Marvel Comics character named "Iron Cross." It's possible you're thinking of:

* The Iron Cross, a medal awarded by Germany, which is not a Marvel Comics character.

* Iron Man, who has a symbol similar to an iron cross but is not called that.

* A different character you may be thinking of.

Could you please clarify the character you're asking about? I'd be happy to help you find information about them.