This poet described the "exquisite monster" of Ennui in a poem addressed to "my likeness, my brother," the reader.
This poet described beating an aged beggar's head against the wall, then getting four of his teeth knocked out by that beggar. This author described a "passionate spectator" for whom "the crowd is his element." This poet of "Let's Beat up the Poor!" lamented "the shape of a city changes... quickly, alas!" in a poem about urban renovations titled "The Swan." This author's description of the  flaneur  in "The Painter of (*)  Modern Life" drew on "The Man of the Crowd" by Poe, whom he popularized in Europe with his translations. This poet described the "exquisite monster" of Ennui in a poem addressed to "my likeness, my brother," the reader. The sections "Wine, Death, and Revolt" and "Spleen and Ideal" appear in his masterpiece. For 10 points, name this Parisian poet of  Les Fleurs du Mal .
This poet described beating an aged beggar's head against the wall, then getting four of his teeth knocked out by that beggar.
Charles Pierre  Baudelaire  