From my book review page is this recommended paperback on the subject: Jones, A. H. M., Constantine and the Conversion of Europe, Medieval Academy Reprints for Teaching, 4, U. of Toronto Press, 1978 Facts about the times of Constantine the Great are difficult to separate from reports colored by historians with an agenda. To Christians, Constantine was the man who ended the persecutions of their faith; a man who could do no wrong. Pagan historians had difficulty seeing the good in the man. Certainly he was so powerful that negative information was not published until the primary sources were long gone. The author discusses critically the evidence from all sources including bits of information from surviving inscriptions and documents to present a balanced view on the events of the early 4th century AD. I found the discussion of the events surrounding the deaths of Crispus and Fausta most interesting. While this is not a coin book, collectors of the Constantinian period should enjoy knowing more about the history of the period they collect. This little paperback is clearly written and full of information about a period not well covered by historians. https://www.amazon.com/Constantine-Conversion-Europe-MART-Medieval/dp/0802063691 Used ones read like new: https://www.amazon.com/gp/offer-listing/0802063691/ref=dp_olp_all_mbc?ie=UTF8&condition=all
Crispus would have made a great Emperor. Too bad he got himself killed most likely engaging in an affair with Fausta. Some people seem to suggest she accused him of rape, and Constantine killed his son, then upon finding out Fausta's lie, he killed her too. However, I tend to lean towards the affair, as in my mind it explains why Constantine never lifted the damnatio memoriae on his son.