He flourished in the ninth century , and at a time when Bangor had been wasted by the Northmen .
- At the 11th of June , the Martyrology of Tallagh records a festival , in honour of Riagail , Bennchair .
Martyrology flourished in the ninth century , and at a time when Bangor had been wasted by the Northmen .
- At the 11th of June , the Martyrology of Tallagh records a festival , in honour of Riagail , Bennchair .