Five questions which arose during Heikel's editing of the first volume of his collected works of Eusebius of Caesarea, the bishop, church historian, and servant and biographer of Constantine; this first volume deals with the works on Constantine: The Address to the Holy Gathering (Oratio ad sanctum coetum). which appears as Constantine's words in Book V of the Life of Constantine is certainly not authentic, but was written sometime between 450 and 830. The Manuscript N (of the Life, including the Address) is deeply revised, and should be considered accordingly - with evidence. Examples of the readings of the Vatican Manuscipt of the same works. The influence of the Laudation of Constantine on the Life, and the writing of the Life..