[SunkenCiv]

Thanks C19fan. I tried to tackle his "Rime" when in high school, seemed like a perfect fit at the time, couldn't get into it, but here's an online version of an old engram from that time:

Mary Shelley grew up with the influence of Coleridge through her father who often disagreed with his views, but respected the man, often invited him into their home. It is said that Mary Shelley hid behind a couch and listened to Coleridge reciting his famous poem, and that is why it is one of her influences throughout Frankenstein. Throughout his life, Coleridge was continuously ill, mentally and physically and became addicted to opium as an escape from his diseased body. He died of heart failure in 1834.

Mary Shelley Wiki, The Rime of the Ancient Mariner

[SunkenCiv]

The other engram pertains to Coleridge’s own plagiarisms.

The Oxford Handbook of Samuel Taylor Coleridge
https://books.google.com/books?isbn=0199229538

The attack on Coleridge’s plagiarism commenced in 1840 with James Frederick
Ferrier, who discovered Coleridge’s use of passages from Friedrich Schelling
while he was busily borrowing from the same source in his ‘The Philosophy of
Consciousness’ (1838/9)...

Less inflammatory:

The Road To Xanadu
by John Livingston Lowes
https://archive.org/details/in.ernet.dli.2015.264298