After a couple months of hiatus (because I've been busy), I've continued re-watching season four of Grimm. I noticed what I think is a subtle reference to Beatrix Potter's The Tale of Peter Rabbit in episode 14 - "Bad Luck."
At the very beginning of the episode, a boy named Peter is murdered. Peter is a Willahara, and a Leporem Venator hunts him down to cut off his foot, which is believed to help with fertility. As Nick explains to Hank and Wu after seeing Peter's mother woge, Willahara are "rabbit-like" Wesen:
The name Peter and being a rabbit is common to both, but in reading The Tale of Peter Rabbit, I found something else. Mrs. Rabbit tells her children, "You may go into the fields or down the lane, but don't go into Mr. McGregor's garden: your Father had an accident there; he was put in a pie by Mrs. McGregor." In the show, Peter's father also had an accident (which appears to have been orchestrated by the Leporem Venator to acquire the father's foot too).
Most of the show is based on the fairy tales by the Grimm brothers, so it seems likely that Potter's tale, which has some similarities, was used as inspiration for this particular episode.
