Who is Charlotte Sine? Charles Leclerc split with his ex-girlfriend shortly before dating Alexandra Saint Mleux

F1 Grand Prix Of Mexico City 2025 - Source: Getty
Charles Leclec At F1 Grand Prix Of Mexico City 2025 - Source: Getty

Monégasque Formula One motorsport driver Charles Leclerc recently announced his engagement to his longtime girlfriend, Alexandra Saint Mleux. She is an influencer, artist, and fashion enthusiast.

In an Instagram post uploaded on November 2, the couple jointly made the announcement. The caption, with three red hearts and one ring emoji, read:

“Mr. & Mrs. Leclerc.”

The post was accompanied by a carousel of images from their proposal night. One showed Leclerc and Mleux sharing a passionate kiss, while she flaunted her engagement ring. Others showed the pair posing with their dog alongside a picture of the candlelit proposal setting with a heart drawn using rose petals.

Earlier, Charles Leclerc dated Charlotte Sine for three years when she was an architecture student.

Shortly after their mutual and public breakup, the Ferrari racing driver became romantically involved with his now-fiancée, Alexandra Saint Mleux. They were first spotted together at the Paris Fashion Week in March 2023.


Exploring Charles Leclerc’s past romance with Charlotte Sine

According to The Sun, Charlotte Sine is also a native of Monaco and was born in September 1999. She is an architect by profession and runs a shoe brand. Sine is also an artist and content creator who is active on both Instagram and TikTok (@itscharlottesine), where she has amassed over 709k and 318k followers, respectively.

Just like Alexandra Saint Mleux, Charlotte Sine creates content on lifestyle, fashion, and travel. Sine is fluent in English, French, and Italian.

Sine and Leclerc reportedly met as teenagers when her mother moved in next door to his family. They began dating years later in 2019. During their relationship, he kept his personal life private. Meanwhile, Charlotte occasionally shared their pictures on her social media.

Charles Leclerc announced his split from his now-estranged ex-girlfriend via an Instagram post in December 2022.

“Hello everyone, Charlotte and I have decided to end our relationship, and we remain good friends. We have shared so many great moments, and she is and always will be a very special person to me. She is amazing and deserves the best. Please respect our decision and her privacy in a time like this.”

Charlotte Sine also shared a similar message on her profile.

“Charles and I have decided to end our relationship and stay good friends. It’s been 3 beautiful years together with loads of memories. He is an amazing person, and I wish him the best. Please respect our decision and privacy. Thank you.”

According to an August 2023 post on the @F1gossipofficial page on Instagram, Charles Leclerc’s now-estranged ex-girlfriend and his fiancée were former friends through Charlotte’s sister, Valentine Sine.

“We had already said that there was a friendship between Charlotte Sine and Alexandra; fans found these comments between the two in an old post by Charlotte. Rumors at the time said that Charlotte’s sister was very close to Alex when the rumors of Alex’s relationship with Charles started; they stopped following each other on social media!” the post read.

Charles Leclerc was romantically linked to Italian-born model Giada Gianni between 2015 and 2019. He reportedly broke up with her to focus on his F1 career.

Neither Charlotte Sine nor Giada Gianni has reacted to their ex’s recent engagement to Alexandra Saint Mleux.

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Edited by Nimisha