Meinir Ffransis is one of the three daughters and seven children of the first Plaid Cymru MP and one-time party leader, Gwynfor Evans, and his wife, Rhiannon Prys Thomas, both of whom died in 2005.

Her political career began when, aged sixteen, she campaigned for her father in the 1966 Carmarthen by-election, when he took the seat from Labour.

[2] It was suggested that the loss of the seat in 1970 was partly due to his daughter's involvement in vigorous protests by the Welsh Language Society that same year.

[3] She married Ffred Ffransis, also a keen campaigner for Cymdeithas yr Iaith Gymraeg.

[7] Another daughter, Lleucu Meinir, was involved in a public protest in Grangetown, Cardiff, for refusing to pay parking fines notified to her in the English language only.