1810 England, the height of the Napoleonic wars. It was thought that humans walked the path of enlightenment leaving monsters and dark things behind. However, those monsters and night stalkers merely hide in the darkness, as a young maid, Bernadette, soon finds out.
I wonder if you understand the implications of what she's saying?
That he died shouldn't be a surprise. He was undergoing massive and traumatic physical changes. It could have been heart failure, a heart attack, lung collapsed, organ failure, internal bleeding, brain hemorrhage, etc. etc. etc.
What should be surprising is that anyone 'survives' to become a vampire.
I think the thing that Bernadette is regretting the most is the loss of producing a new life without having to turn them into a vampire. I seem to remember that one of the things she wanted most of all was to have a family, and to do that she would have to become human again.
I know in some stories of vampires, males and female vampires can still sire children if they're less than a few centuries old (Laurell K. Hamilton, Anita Blake Series) but I feel that your version is more realistic. The fact that if a vampiric mother and father wish to have a child, they would have to "adopt" in their own little way.
I think Angela having a child form is becoming much more clear to me at this point.