st.Patrick is the famous one,we know every little about his life and works, the roman catholic church,the Celtic monks,saint cadoc,saint columban and so on,there are many good books on Celtic Christianity,this is a start and i could write a paper on this matter,so leave a message on my board and i can leave a couple titles for you.georgeoverton .
Saint Patrick is credited with having brought Christianity to Ireland in the 5th century AD.
St. Patrick is traditionally credited with bringing Christianity to Ireland in the 5th century, although there were probably lesser-known Christian missionaries in Ireland before him.
St. Patrick
Kings and Monasteries helped to spread Christianity.
Saint Patrick is believed to have brought Christianity to Ireland and converted many people to the faith. He also spent time teaching and building churches throughout the country. Additionally, he is credited with using the shamrock to explain the concept of the Holy Trinity.
432AD
Paul of Tarsus, who was previously known as Saul spread Christianity as the first Christian missionary, or person who spreads their belief to non-believers. He travelled across the Roman Empire, sending Christian messages to gentiles and non-Jewish communities as well as to Jews. This allowed more people to follow the faith. He preached about Christianity in new areas where no one had preached before, and established Christianity there.
Paul
clovis helped spread christianity by making it the only legal religion
The apostle Paul spread Christianity throughout the Mediterranean regionSaint Patrick spread Christianity throughout Ireland!
Christianity
Kings and Monasteries helped to spread Christianity.
Missionaries
St. Patrick spread Christianity in Ireland.
medieval missionaries