The Exercises Of Saint Gertrude: Virgin And Abbess, Of The Order Of St. Benedict (1863) - Paperbackby Saint Gertrude (Author), Dom Gueranger (Foreword by) The Exercises of Saint Gertrude: Virgin and Abbess, of the Order of St. Benedict is a religious text written by Saint Gertrude. The book was originally published in 1863 and is a collection of prayers, meditations, and spiritual exercises designed to help readers deepen their faith and connection with God. Saint Gertrude, who lived in the 13th century, was a Benedictine nun known for her devotion