Meghan Markle, the Duchess of Sussex, revealed a new affectionate nickname for her husband, Prince Harry, in a heartfelt Instagram post marking International Women’s Day on March 8, 2026. In the caption of a photograph of herself and their daughter, Princess Lilibet, the 44-year-old duchess credited Harry with the two-word name ‘Papa Sussex,’ a first-time public reference to the Duke of Sussex in such a personal context.

A New Nickname, A Personal Touch

The post, shared on the couple’s Instagram account, featured an image of Meghan kissing and cuddling Lilibet, who is four years old, as they sat on rocks overlooking the sea. The caption read, ‘For the woman she will one day be… Happy International Women’s Day,’ followed by a simple photography credit: ‘Papa Sussex.’

Meghan has previously used International Women’s Day as a platform to share personal moments from her family life. Last year, she posted a carousel of photos that included a rare image of Lilibet on a boat with Harry and a childhood photo of herself with her mother, Doria Ragland. The year before that, she participated in a panel discussion at SXSW in Texas, highlighting the role of women in shaping global narratives.

The Significance of ‘Papa Sussex’

What set this post apart was not the photograph itself, but the inclusion of the nickname ‘Papa Sussex.’ The term appears to combine the personal, informal title ‘Papa’ that the children use for their father with ‘Sussex,’ a reference to the couple’s formal title, which was granted to Harry by Queen Elizabeth II before his 2018 wedding to Meghan.

The title ‘Duke of Sussex’ remains a significant link between the couple and the royal institution they stepped back from in 2020. Meghan has spoken openly about the meaning of the name. In an interview with People magazine, she said, ‘It’s our shared name as a family, and I guess I hadn’t recognized how meaningful that would be to me until we had children. I love that that is something that Archie, Lili, H and I all have together. It means a lot to me.’

The photograph was taken near the family’s Montecito home in California, where they have lived for roughly six years after leaving their senior royal roles. The setting, described as sun-washed and coastal, aligns with the images the couple has chosen to share publicly in recent years.

The Implications of a Private Term in Public

The post came just weeks after Meghan shared a Valentine’s Day image of Harry holding Lilibet as she played with red balloons. The caption read, ‘These two + Archie = my forever Valentines.’ The couple has been deliberate about which images of their children appear online, maintaining a consistent approach despite Meghan’s increased social media presence.

Whether ‘Papa Sussex’ is an established nickname used within the family, a spontaneous caption choice, or something Meghan was aware would spark conversation remains unclear. However, the nickname marks a rare moment of unguarded intimacy from a household that has otherwise been cautious about what it shares publicly.

The use of ‘Papa Sussex’ quietly reframes the significance of the title ‘Sussex’ for the family. Rather than being viewed solely as a relic of royal service, the name now carries a more informal, familial resonance, passed from father to children in a moment of shared connection by the sea.