While reading the introduction to Chaucer's translation, in an 1868 publication with Richard Morris as translator and commentator that the university library has an online link to, I could not help but chuckle at Morris' comments about how noble Boethius was and how terrible Theodoric was to suspect him of treason. Boethius wrote a book supporting the Catholic view on the trinity and condemning Arianism. What did he expect? When your king is an Arian, you are taking your life into your hands in calling him a heretic.(Boethius probably did not attack Theodoric in print but heresy was a serious business) Morris also compared him to Cato the Younger, who took his own life, and was an insufferable prig. He also called Boethius 'the last Roman'. I thought that title belonged to Aetius.
Alfred prefaced his translation with the historical background to the book. I think I shall tackle that first. I expect some bias in his presentation.