Complex sentence: In his old age Cainnech retired to an island in Loch Cree, since drained, he copied out the all four Gospels, and wrote a commentary on them, which was called the Glass Kinnich (Glas-Chainnigh) or Chain of Cainnech,.
Split into simpler sentences: In his old age Cainnech retired to an island in Loch Cree, since drained, and wrote a commentary on all four Gospels. This became known as Glass Kinnich (Glas-Chainnigh) or Chain of Cainnech,.