Wiktionary
byronesque
a. Reminiscent of the works of http://en.wikipedia.org/wiki/George%20Gordon%20Byron, typified by gloomy Romantic themes and passionate, arrogant and self-destructive heroes.
Usage examples of "byronesque".
He still sported those unusually dark eyelashes and brows, but he no longer allowed them to droop in Byronesque brooding.
You know, the Byronesque figure who wanders away from the party to stand at the end of the dock and look poetic.
James, clusters of brightly garbed fops en route to heckle the actors at the theater, and young men consumed with Byronesque ennui who were headed for adventure in the stews.