Hywel was the last King of Gwynedd in the male line of Maelgwn Gwynedd.
It is said that Celynin was related to Rhun, son of Maelgwn Gwynedd, Prince of Gwynedd, who is known to have ruled in the 6th century, and that he was also a brother to Rhychwyn, the saint associated with Llanrhychwyn church.
The church was extensively rebuilt in 1865 but incorporates the roof beams and many other features of the former late medieval church said to have been built on the site of the original mid-6th-century church of Maelgwn Gwynedd whose castle was within the parish on the twin peaks at Deganwy.
These include the trilogies of Traci Harding, Mary Gilgannon's historical novels, and a fantasy novel by Nikolai Tolstoy.
Gwynedd | Bangor, Gwynedd | Bala, Gwynedd | Owain Gwynedd | Kingdom of Gwynedd | Maelgwn Gwynedd | Tal-y-llyn, Gwynedd | House of Gwynedd | Bethesda, Gwynedd | Rhun ab Owain Gwynedd | Maredudd ap Cynan ab Owain Gwynedd | Maelgwn ap Rhys | Maelgwn ab Owain Gwynedd | Lower Gwynedd Township, Montgomery County, Pennsylvania | Llywelyn the Elder ap Maredudd ap Cynan ab Owain Gwynedd | kingdom of Gwynedd | Hywel ab Owain Gwynedd | Dafydd ab Owain Gwynedd | Castles and Town Walls of King Edward in Gwynedd |
Another Welsh church in Northop (Welsh: Llaneurgain), Flintshire, is dedicated to "Saint Eurgain", said to have been the daughter of Prince Maelgwn Gwynedd and niece of St. Asaph.