Айдан
Báetán is said to have forced the king of Dál Riata to pay homage to him at Rinn Seimne on Islandmagee near Larne, modern County Antrim possibly in 574 or early 575. Áedán mac Gabráin is thought to be the king in question, and Ulster sources say that Báetán collected tribute from Scotland. Báetán's power can best be judged by the actions of his enemies, Áed mac Ainmuirech of Northern Uí Néill and Áedán mac Gabráin of Dál Riata. In 575, at Druim Cett, these two met and made an alliance, fostered by the future Saint Columba, a member of the Cenél Conaill like Áed, to oppose Báetán's attempts to increase his power by extending Dál Fiatach influence beyond the isle of Ireland.