What Does Boulevardier Mean in Italian?

Loosely translated, a boulevardier is a man-about-town.

What is the difference between a Negroni and a boulevardier?

They both include Campari and sweet vermouth, but the main liquor is what distinguishes them entirely. The Negroni uses gin, and the Boulevardier is made with bourbon. It's a simple switch that makes a hell of a difference.

Where does the name Boulevardier come from?

It was the signature drink of Erskine Gwynne, expatriate writer, socialite and nephew of railroad tycoon Alfred Vanderbilt. Gwynne edited a monthly magazine, a sort of Parisian New Yorker, named The Boulevardier.