Elaeth (sometimes recorded as Eleth) was a Christian king and poet in Britain in the 6th century who is venerated as a saint.
Some religious poetry is attributed to him, as is the foundation of St Eleth's Church, Amlwch, also in Anglesey.
[1] He is said to have been the son of Meurig ab Idno and his wife Onen Greg, the daughter of Gwallog ap Llaennog.
The Black Book of Carmarthen, from the 12th century, attributes two poems of seven stanzas to his authorship, one of simple construction and the other more complicated.
[3] A holy well near there, known as "Ffynnon Elaeth" in Welsh, was named after him, and was regarded as having healing qualities and providing a method of divination.