The novel's main character is Glyndŵr Parry Lloyd, a man who can trace his ancestry back to the last Welsh prince, Llywelyn ap Gruffydd.
[clarification needed][1] In 1929, along with her nephew Ioan Penry Brychan Robertson, she published the Welsh birthday book, Llyfr Penblwydd.
[2] In 1896 Williams was the second person to join Urdd y Delyn, an organisation established by Owen M. Edwards to promote Welsh arts and culture.
[2] Under the pen name of "Gwobrywyon Aberclydach", Williams later presented prizes for harp playing at the national eisteddfodau.
[2] Between 1911 and 1916 Williams was central to the foundation of Byddin Cymru, a radical nationalist group concerned with protecting the Welsh language.
In one of her annual addresses to Byddin Cymru, she urged the members to copy the zeal of the Irish, but after the 1916 Easter Rising, she was more subdued.
She was a supporter of the campaign against the establishment of the Royal Air Force Training Camps at Porth Neigwl and Penyberth, and it was she who gave then the nickname Ysgolion Formio 'bombing schools'.