Dina Diggle-Bolger was a hobbit of the Shire. The sole recorded member of the Diggle Family of Shire-hobbits, she became part of the Bolger family when she married Gundahar Bolger. Dina and Gundahar had two children, Adalgar and Adaldrida, and many descendants. Among numerous family connections, Dina was one of the great-great-grandmothers of Frodo Baggins.
- J.R.R. Tolkien, The Lord of the Rings, Appendix C, "Bolger of Budgeford"