Question: Were the Mac Congaile's closely related to the Mac Fergaile's? If so, could the black-haired Niall in fact have been Niall Trossach? He spent time on Iona as a monk. Could he have become an abbot before he died (A.D. 784-ish)? If both of the above are true, it could explain the likenesses between my DNA and that of Larry Slavens. Niall Trossach was Niall mac Fergaile. Sleibine, abbot A.D. 752-766 was Sleibine mac Congaile. OR does .i. ab ite not perhaps mean that the person was on Iona studying to become an abbot? Sandy