10.

 Boniface was outstanding in his unique sense of devotion. When he was an old man he revealed this quality to Pope Zachary in a letter: "With the consent and by the order of Pope Gregory, I bound myself by a vow to live in intimate relationship with and at the service of the Apostolic See almost thirty years ago. I would always let the pope know both my joys and my sorrows. This way we could praise God together in happiness, and I could receive the strength of his advice in times of sadness."[⁷]