Board Thread:Episode Discussion/@comment-3125844-20151215185936/@comment-26235944-20151220034419

Trubel was born in April, 1993...and nearly a year later in March, 1994, Nick lost his father and his mother Kelly supposedly 'died' with him. So Trubel was almost a year old when Kelly disappeared. That means that it is very unlikely that Trubel is Nick's little sister...but they could be related somehow. They were both born in New York state, and we know very little about their family histories. Since they are both Grimms, they probably share some common ancestors dating back centuries ago to the original Grimms.