Who is Alexandra Saint Mleux? Model, influencer, charity founder, and Charles Leclerc's fiancée

Alexandra Saint Mleux and Ferrari Formula 1 driver Charles Leclerc announced their engagement on 2 November 2025.

After rumours of the pair's relationship in early 2023, the couple made their first public appearance at Wimbledon the same year. Since then, Saint Mleux has become a regular member of the F1 paddock along with the couple's fan-favourite long-haired dachshund, Leo.

Alexandra Saint Mleux's early life

While little is known about the model and influencer's early years, she studied history of art, specialising in the 20th century, at L'École du Louvre and has worked as an art assistant at auction house Hôtel des Ventes de Monte-Carlo and in public relations for Monaco Art Week, according to Tatler.

Alexandra Saint Mleux's career

Prior to her relationship with Leclerc, Saint Mleux kept her online presence to a minimum and temporarily set her accounts to private when their relationship first went public.

But the 24-year-old has since created a career in social media with 3 million followers on Instagram and 1.9 million on TikTok at the time of writing. She also has a second Instagram account, which focuses on her passion for art.

Saint Mleux has worked with brands including Hailey Bieber's Rhode, Alo and Jacquemus.

She also secured the front cover of Elle Mexico, which promotes her new charity Corazones Unidos. 

"Corazones Unidos was born from the belief that kindness, even in its smallest form, can change lives," she wrote on Instagram.

"Social media gave me the gift of independence, and with that blessing came an immediate and profound desire to give back in any way I could, to transform gratitude into action, and privilege into purpose.

"This has been a dream in my heart for a long time, to create something that inspires, and grows from love.

"This fund was created to support children across Mexico by giving them access to quality education and the opportunities that come with it. When paired with art, music, and creativity, education becomes a powerful force for change.

"Our goal is to help children, especially girls, continue their education, explore their creativity, and feel empowered to dream bigger, while also supporting women in the arts, helping their voices and talents reach the world."