09 June 2026 – Feast of St Columba (Colum Cille), Abbot and Missionary Feast: St Columba, Abbot, Missionary. Columba, also known as Colum Cille, was born in Gartan, County Donegal in 521 and was of royal lineage. He studied under Finnian of Moville and Finnian of Clonard. He founded monasteries in Derry, Durrow, Iona and…