abbot of iona aghaboe anglican communion bannockburn bookbinders brendan of birr bridei i of the picts cainnech of aghaboe calendar of saints calligraphy catholic encyclopedia christianity clonard abbey columba of terryglass columbanus county donegal county londonderry county meath druid durrow abbey early christian ireland early middle ages eastern orthodox church eilean chaluim chille evangelism exile finnian of clonard finnian of moville fortriu gaels gartan hebrides high king of ireland high cross inchcolm inverness iona ireland kintyre latin list of people on stamps of ireland literacy loch ness loch ness monster lutheranism missionary monastery monasticism monk monymusk reliquary niall of the nine hostages northern ireland old irish patron saint picts pilgrimage psalter river boyne river ness roman catholic church saint senan sainte-colombe scotland scotland in the early middle ages scottish gaelic scriptorium shrine sign of the cross st columb stanza twelve apostles of ireland wikimedia commons