My dear Papa. It being fair-time, I should like so much a visit from my Papa as I have many wishes to satisfy. Won't you come to please your Allegrina who loves you so?”
She was strictly disciplined by the nuns while there. Seven months after writing the letter she died of a fever, five years old. You can see the letter in Allegra's handwriting here: https://x.com/JedPumblechook/status/1734513882360594640?s=20.Byron never once visited her or responded to her letter. In the back of the letter he wrote "Sincere enough, but not very flattering - for she wants to see me because it 'is the fair' to get some paternal Gingerbread - I suppose." (https://www.nytimes.com/1983/10/13/arts/notable-children-s-l...)
"Caro il mio Pappa" indeed!
My favorites are “The Stress of Her Regard” by Tim Powers and “The Difference Engine” (he appears only tangentially) (but still, damn, what a book).
And of course “Arcadia,” an uncommonly beautiful play by Tom Stoppard.
For anyone who enjoys the mix of espionage & occult horror themes in "Declare", there's a couple of similar themes, with differences, in Charles Stross' Laundry Files series. Stross' series features a lot more government & IT bureaucratic comedy/horror.
I'm not sure there's a direct Byronic connection to the Laundry Files, but one of Stross' axioms for the Laundry Files universe is that magic is a branch of applied mathematics -- understanding the right theorem or having a person (or circuit) execute a certain algorithm has occult consequences. So we can at least indirectly make a connection back to Byron via Ada Lovelace.
https://www.goodreads.com/book/show/190554.Declare
https://www.antipope.org/charlie/blog-static/2020/10/the-lau...
O fish, are you constant to the old covenant?