Traditional Catholic Daily Devotional
Saint Adomnán of Iona is one of those saints who becomes more interesting the more you dig into him. He was a monk and abbot, but also a historian, biographer, diplomat, traveler, and the driving force behind one of medieval Europe's earliest attempts to protect civilians during warfare.
He was born in Ireland around 624 and eventually entered the great monastery of Iona, the island community off the coast of Scotland founded by Columba.
About a century after Columba's birth, Adomnán became Iona's ninth abbot.
And fortunately for us, he liked to write.
His Life of Saint Columba is one of the most valuable works surviving from early medieval Britain and Ireland. Adomnán collected stories from older monks who had known people close to Columba himself. He recorded miracles, voyages, conversations, kings, monasteries, and little details of daily life that otherwise would have disappeared completely.
So a surprising amount of what we know about Saint Columba comes from Adomnán.
He also wrote a fascinating book about the Holy Land.
Adomnán had never been there.
Instead, a Frankish bishop named Arculf was apparently shipwrecked near Britain after making a pilgrimage to Jerusalem. He eventually reached Iona and described everything he had seen. Adomnán carefully interviewed him and turned those conversations into On the Holy Places, complete with descriptions of Jerusalem, Bethlehem, and other biblical sites.
But perhaps the most remarkable part of Adomnán's story came later.
According to Irish tradition, he encountered a woman who had been brutally injured during warfare. The experience deeply disturbed him.
Adomnán began pushing Irish kings and churchmen to agree that some people simply should not be legitimate targets in war.
In 697, a major gathering at Birr adopted what became known as the Law of Adomnán, or Cáin Adomnáin. It offered special legal protection to women, children, and clerics and established penalties for killing, assaulting, or abusing them.
For the seventh century, that's extraordinary.
It wasn't modern humanitarian law, of course, but it came from a strikingly familiar conviction: even warfare needs limits, and the vulnerable deserve protection.
Adomnán died in 704, leaving behind something unusual for an early medieval saint. We don't just have legends about him.
We have his books.
You can still visit Iona today and walk the island where he governed the monastery and gathered stories about Columba more than thirteen centuries ago.
Saint Adomnán reminds us that preserving history, protecting the vulnerable, and telling the stories of holy people can themselves become works of Christian charity.
Saint Adomnán of Iona, keeper of sacred memory and defender of the vulnerable, pray for us.