Sarah Ferguson Reveals Granddaughter Sienna’s Sweet Nickname (and Who in the Fam She Most Resembles)

Looks like we can add another royal family nickname to the books. While Sarah Ferguson, 63, was busy promoting her new novel, A Most Intriguing Lady, the royal subtly revealed the nickname for her 1-year-old granddaughter, Sienna.

The Duchess of York recently took a whirlwind trip around New York City, and one of the stops included a visit to the 92nd Street Y (aka 92NY). While chatting with moderator Samantha Barry, the conversation turned to Ferguson's family and what it's like being a grandmother.

Of course, the duchess fawned over her grandbabies: “These two little...baby Eugenie, baby Beatrice, they're looking at me with the big eyes. They look like my girls,” the duchess said in reference to her grandchildren, per Hello!. “August is teaching me to play trains and diggers, and Sisi [Sienna] is just mini Beatrice, and she gets little pink tutus, because Beatrice likes to dress her up like Barbie.”

Did you catch that? In case you didn't, it turns out the family calls Princess Beatrice's baby daughter “Sisi.” Also, the Duchess of York revealed Sienna's closest family resemblance—her mother. And we can totally believe that she's a “mini Beatrice” (even though we haven't seen a photo of the toddler just yet).

Princess Beatrice, 34, and her husband, Edoardo Mapelli Mozzi, 39, welcomed Sienna Elizabeth Mapelli Mozzi on September 18, 2021, at the Chelsea and Westminster Hospital in London. This was the royal couple's first child together, but Princess Beatrice is also a stepmother to Christopher Woolf, 7, who Mozzi shares with his ex-wife, Dara Huang.

We know that the royal family has a knack for nicknames, and little Sienna is only the latest to get a special moniker. In the past, we learned that Princess Beatrice's younger sister, Princess Eugenie, also has a nickname for her 2-year-old son, August Philip Hawke Brooksbank: “Augie.”

Princess Eugenie revealed the pet name on August's first birthday, when she shared an Instagram post that read, “Happy 1st Birthday to our little hero Augie. You are such a special soul that brightens every room with your smile and wave. You have made us so very proud. We love you!”

“Sisi” suits you well, baby Sienna.

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