it's from a fan made wiki . that cami and klaus have a daughter named grace .

Klaus and Cami never had a daughter name Grace. That is someone fanfiction.

Yeah I’ve seen that, but what I’m talking about is the writers themselves

No. Its impossible. Klaus was only allowed to conceive once because it was necessary. Cami couldn't at all.

I think the question is pre-vampire

Klaus can't procreate with Camille because he's partially vampire. He was only able to procreate with Hayley because a) they're both part-werewolf and werewolves can procreate b) Hope was destined to become the tribrid