Francesco Risso will become creative director of the label.
The designer had most recently been freelancing after running his own label and working at Cerruti and Jack Wills.
Slonim, a perennial presence at red carpet events, had long held a column on the back page of Allure.
Called Fabled By Marie Claire, the e-commerce site and London bricks and mortar store will launch in August
Tribune’s rejection of the media company’s bid sent Gannett back into the public sphere to push the Tribune board to further explain its decision.
The event will honor achievement across industry sectors.
Customers will be able to pre-order Vogue's September issue on Tuesday.