Llywelyn the Last | Gruffydd ap Llywelyn | Llywelyn the Great | Llywelyn | Morgan Llywelyn | Madog ap Llywelyn | Llywelyn the Elder ap Maredudd ap Cynan ab Owain Gwynedd | Llywelyn Siôn | Llywelyn Bren | Llywelyn ap Dafydd | Bleddyn Fardd |
Brut y Tywysogion states that the church was sacked by Vikings in 963, and during the twelfth century it was the subject of a memorable poem by Llywelyn Fardd (I).