St Cynidr was a 6th-century Catholic pre-congregational saint of South Wales and first bishop of Glasbury, Powys.
Cynidr is buried in Glasbury,[1] where he is venerated with a feast day of 27 April.
The parish church of St Cynidr (St Kenider) at Glasbury commemorates his work although the current church was built c.1088AD. A 'holy well' in the town is also attributed to him.
Cynidr was the son of St Gwladys,[2] grandson of King Brychan and the brother of St Eigon, the patron saint of Llanigon,[3][4] near Glasbury.