"Il Duca e Io" is likely a reference to a book or document, possibly in Italian, which translates to "The Duke and I" in English. Without more context, I'm assuming it's related to a literary work.
Here are some possible sources to find a PDF of "Il Duca e Io": download pdf il duca e io
Yes, but those sites are illegal and have been heavily targeted by law enforcement (the FBI shut down Z-Library domains in 2022). Using them puts you at legal and cybersecurity risk. "Il Duca e Io" is likely a reference