User blog comment:Gcheung28/A Middle-Earth Character Tree/@comment-184.167.148.2-20130122111847/@comment-24.0.160.221-20130128214529

Yes, Pippin and Frodo are cousins as well. A distant cousin on Frodo's mother's side. Pippin mentions it when they are in the Prancing Pony, waiting for Gandalf to show.