What is st columba's real name?

St. Columba's real name was Crónán, though he is more commonly known as Columba, which means "dove" in Latin. He was born in 521 AD in present-day County Donegal, Ireland. Columba is best known for founding the monastery on the island of Iona in Scotland, which became a center of Christian learning and missionary work. His contributions to Christianity and monasticism have made him a significant figure in both Irish and Scottish history.