Board Thread:General Grimm Discussion/@comment-76.30.64.208-20141207030619/@comment-1509826-20150420193636

The episode in question? Pretty much everyone which features Nick going through his books. Then there are the brothers Grimm, and after that the original seven knights in the fourth crusade (and then before them the ancient Roman Grimms).

Now no, it doesn't make Nick and Trubel closely related, they easily could have shared a relative several hundred years ago, as Nick states when she asks him.

Its just the two look so much alike, and have similar personalities that has led many fans to speculate there closer related than a few hundred years back (even David's on board with the idea).

Not sure about the shared Gene theory. I mean for that to work it would require both parents to carry the gene, from what we've heard Grimms are no where near common enough for the majority of people to do so. And the majority don't seem to marry other Grimms.