Petrus de Dacia (Dominican friar)

Petrus de Dacia (Peter of Dacia), also known as Petrus Olai, was a Dominican friar, theologian, and writer who lived in Sweden during the 13th century. He is best known for his extensive correspondence with Christina of Stommeln, a mystic and stigmatic from Germany.

Born in Skänninge, Sweden, around 1235, Petrus joined the Dominican Order and studied theology, possibly in Cologne. He became a lector (teacher) in the Dominican house in Visby, Gotland. It was during his time in Visby, around 1267, that he began corresponding with Christina of Stommeln. This correspondence, which continued for several years, provides invaluable insights into the spiritual life of the era, the nature of mystical experiences, and the relationship between a spiritual director and a visionary.

Petrus's letters to Christina reveal him as a thoughtful and compassionate spiritual guide. He offered her comfort and encouragement in the face of her suffering and provided theological context for her visions. The letters also document his own spiritual journey and his deep devotion to Christ. Christina's letters to Petrus, unfortunately, are largely lost.

Beyond his correspondence, Petrus de Dacia is credited with writing other theological and spiritual works, though many are either lost or attributed to him with varying degrees of certainty. He is considered an important figure in the history of Swedish spirituality and is venerated as a blessed in the Catholic Church. His feast day is celebrated on May 6th. His work provides a window into the religious and intellectual life of medieval Scandinavia and offers a valuable perspective on the intersection of theology, mysticism, and personal spirituality.