Ségéne was of the Cenél Conaill, the same kindred as Columba, and he was the nephew of a previous abbot, Lasrén.
It was during Ségéne's long abbacy that the famous controversy regarding the dating of Easter first made itself properly felt.
Ségéne also established the first Gaelic missionaries amongst the English, sending Corman and then Áedan, the latter of whom, with the help of King Oswald of Northumbria (who himself had spent time in exile at Iona), established a daughter house and bishopric at Lindisfarne.
You can help Wikipedia by expanding it.This biographical article about a person in connection with Christianity is a stub.
You can help Wikipedia by expanding it.This biography of an Irish religious figure is a stub.