Llyfr Gweddi Deuluaidd: Yn Cynnwys Gweddiau Boreuol a Phrydnhawnol Am Bedair Wythnos: Hefyd, Gweddiau Ar Wyliau Arbennig Yr Eglwys, Ac Ar Achl

This Welsh-language prayer book is a comprehensive collection of devotions and supplications for morning and evening, as well as special occasions throughout the year. In addition to the prayers themselves, 'Llyfr Gweddi Deuluaidd' includes guidance on personal spiritual practice and the importance of faith in everyday life. Its timeless message of hope and gratitude continues to inspire readers of all ages.