Mary-Kate Olsen and Olivier Sarkozy (17-Year Age Difference)
Growing up in the spotlight alongside her twin sister Ashley, Mary-Kate Olsen found a new partner to share her life with. Despite a substantial 17-year age gap, the former child star was captivated by Olivier Sarkozy, the half-brother of a former French president. Their connection culminated in marriage in 2015.
Interestingly, her sister was also involved with a partner who was 28 years her senior at one point, making Mary-Kate and Olivier's age difference appear relatively insignificant in comparison.