" That’s a trilby,” I said, referring to Mr. Mitchell’s hat and trying to show off at least some expertise.
“Named from du Maurier’s novel, later made into a play,” said Oscar. “It was a style worn on stage.”
“You mean Rebecca?”
“No, Rosemary. George du Maurier’s Trilby. Not Daphne. That was his granddaughter. Now, Trilby also introduced into common usage the name Svengali. You see, it’s a story about power, about control . . . "

― Sheridan Hay, , The Secret of Lost Things