 It relates that the joint high-kings Diarmait Ruanaid and Blathmac appealed to Féchín and other churchmen, asking them to inflict a terrible plague on the lower classes of society and so decrease their number.Féchín was one of the churchmen to answer their request and to perish in the event, whereas Gerald kept aloof and survived.One of Féchín's fellow victims in the plague of 665 is said to have been St Rónán mac Beraig (son of Berach), founder of Dromiskin Monastery