Cynfyn was a notable figure in early Welsh history, recognized as a king of Gwynedd, a region in north Wales. He is often associated with the Cynfyn dynasty, which played a significant role in the development of Welsh identity and governance during the early medieval period. His reign is believed to have occurred in the 7th century. Cynfyn is also known for his connections to the Celtic culture and the spread of Christianity in Wales. His lineage is linked to several prominent Welsh rulers, contributing to the historical narrative of the region. His legacy is reflected in the continued importance of Gwynedd in Welsh history.