St. Aedhan or Aidan, possibly at Clontarf, County Dublin.
The simple notice of Aidan appears in the published Martyrology of Tallagh, at the 27th of August. The same mode of entry is to be found in that copy contained in the Book of Leinster. There is a saint having this name, and also called Mocukein or belonging to the race of Kien, nephew to St. Columkille, and son of his sister Sinecha. However, it cannot be said, that he was identical with the present Aidan. There is likewise an Aedhan, son to Lughar, and sprung from the race of Eochaidh Finnfuathart, son of Feidhlimidh Reachtmar, son to Tuathal Teachtmar, from whom Brighet descends. As we have already found, there are several holy men, named Aedh, Aedhan or Aidan, in our Irish Calendars, at different days of the year; many of those are distinguished by parentage or place, while some are simply noted—-as in this instance—without any such clue to their recognition. According to Colgan, the Aidan, belonging to St. Brigid's family, seems to have been venerated at a Cluain Tarbh—now probably Clontarf, County Dublin—either on the 27th of August, or on the 4th of September. In the Martyrology of Donegal, at this same date, is entered Aedhan, but without any peculiar recognition of family descent or place of residence.