St Patrick and Christianity in Ireland

Although Christianity declined in Britain after the Romans left, it grew stronger in Ireland. Some people in Ireland had become Christian through contact with Roman Britain by the early 5th century. The actions of the Roman-British missionary, St Patrick, some time in the 5th century, spread the religion more widely. Risking martyrdom, he preached to the kings of north-east Ireland and set up churches. He recorded his life and missionary activities in his 'Confession' which is the main evidence we have for his life.