The Death of Valentinian II and the Defeat of Arbogast
My only quibble is that I do not think St Ambrose accepted the latter. I base this on his funeral sermon.
His full funeral sermon is here: https://archive.org/details/fathersofthechur012812mbp?view=theater#page/n287/mode/2up
You'll have to take it up with JB Bury. Pro tip: you'll need a necromancer, as he died in 1927.
My only quibble is that I do not think St Ambrose accepted the latter. I base this on his funeral sermon.
His full funeral sermon is here: https://archive.org/details/fathersofthechur012812mbp?view=theater#page/n287/mode/2up
You'll have to take it up with JB Bury. Pro tip: you'll need a necromancer, as he died in 1927.