Suibne moccu Fir Thri

Suibne moccu Fir Thri was the sixth abbot of the monastery of Iona, from 652 to 657, and is venerated as a holy abbot in the Western Church. His abbacy is little known.

The Annals of Ulster call him Mac Cuitri, that is, of the kindred of the Fir Thrí (Urthri). His origin is unknown, but he is the only one among the early abbots of Iona not tied to the kindred of Columba, the Cenél Conaill. In his time Iona was the chief ecclesiastical center of the British Isles, and the evangelization of England went forward: in 656 Diuma became the first bishop of Mercia. He was a contemporary of the powerful King Oswiu of Northumbria, raised in exile by the monks of Iona and favorable to Irish Christianity; at the same time a party demanding the Roman rite and liturgy began to grow around the king.

He reposed on 11 January 657, the day on which he is commemorated.