Adaldrida Brandybuck, née Bolger, was the daughter of
Gundahar Bolger and
Dina Diggle and the younger sister of
Adalgar.
1 She married
Marmadoc Brandybuck and had four children: Gorbadoc, two unnamed daughters and Orgulas.
2 Adaldrida's date of death is unknown.
References
1 - J.R.R. Tolkien, The Lord of the Rings, Appendix C, "Bolger of Budgeford"
2 - J.R.R. Tolkien, The Lord of the Rings, Appendix C, "Brandybuck of Buckland"