Hi Edna,
I was looking in Schumann's writing on Chopin's 2nd Ballade and, at least in the version I have, he says:
"He [Chopin] told us then how he was prompted to his ballades by poems of Mickiewicz."
Perhaps there are other versions, but at least from this part it is not clear it is inspired by the poem "The Switez" and could have been an invention of Cortot. Well, Cortot is not bad in Chopin so there's no shame if you two thought alike. (For what it's worth, your description sounds plausible to me.)
Perhaps it appears in one of his letter though. In any case it's of no consequence. I like your connection with the picture of Drag me to hell.
Schumann doesn't say much else on the Ballade but the quote continues with: "Conversely, a poet might easily be inspired to set words to his music. It evokes the most intimate of thoughts."
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