Wikipedia
Adomnán
Adomnán or Adamnán of Iona (, ; 624 – 704), also known as Eunan , was an abbot of Iona Abbey ( 679–704), hagiographer, statesman, canon jurist, and saint. He was the author of the most important book on the life of his cousin St Columba and the promulgator of the Law of Adomnán or "Law of Innocents" .