The Paris-based publicist is shuttering her namesake firm, according to an email sent from the agency.
She will succeed Gabriele Maggio, who is exiting the business next month “to pursue other opportunities,” the company said.
The move has triggered an executive shuffle in the watches and jewellery unit at parent company LVMH.
The Brognano took the creative director job at the Italian label in 2020.
The production agency will draw on the resources of Hettmann’s namesake company and MA + Group to produce events for luxury, fashion and design clients.
Davide Renne joins the Aeffe-owned house from Gucci, where he spent two decades, most recently as head of womenswear design.
A new date for the event has not been scheduled, though the body plans to announce its 2023 award winners before the end of the year.
The designer will stage a special event during the Florence trade show next January.