Princess Beatrice and Edoardo Mapelli Mozzi just welcomed their first child together, a baby girl, but she isn't Edo's first.
The new dad already has son Christopher 'Wolfie' Woolf from a previous relationship and Beatrice has welcomed the little boy into their family with open arms.
In fact, the royal statement announcing the news that Beatrice had given birth even included a sweet nod to Christopher.
The statement from the Palace read: "The new baby's grandparents and great-grandparents have all been informed and are delighted with the news.
"Her Royal Highness and her child are both doing well, and the couple are looking forward to introducing their daughter to her big brother Christopher Woolf."
Beatrice officially became Christopher's stepmother in 2020, when she and Edoardo tied the knot in a private ceremony at The Royal Chapel of All Saints at Royal Lodge in Windsor.
In fact, Christopher was included in the intimate wedding and took on the role of page boy and best man.
Although there are no candid pictures of the couple with Christopher, royal fans believe they can see a glimpse of him in his dapper wedding attire in the background of the image above.
Nicknamed 'Wolfie', Christopher, now five, was born to Edoardo and his former fiancée architect Dara Huang in 2016.
Despite breaking off their engagement in 2018, Edo and Dara continue to co-parent their son, with Dara splitting her time between London and Hong Kong due to work.
When she is working in Asia, 'Wolfie' stays with his dad which means Beatrice "has really gotten to know him."
"Edo is easily one of the best dads," a source revealed to PEOPLE magazine.
"He is so involved, he is so committed to this little boy, and Beatrice is already showing that she's a fantastic step-mummy already.
"They've been on family vacations together already. They are really happy, there's no better person they could have for a step-mummy."
We haven't seen too many photos of little Wolfie but his proud mother does share sweet pictures on her Instagram account from time to time.
A recent snap showed the five-year-old sitting at a restaurant in a cute brown outfit, Dara using a heart emoji to hide his face.
In December 2018, she shared a selection of family photos and buried away was a gorgeous close-up of her son's face.
"Some photos of a few of the many things I'm thankful for 🙏🏻❤️. Thank you for the love and support I got from everyone, for my family and friends, for my business partners and colleagues, for my mentors and role models, for my strength and blessings.
"Thank you 2018 and here's to a successful new year!!!🙏🏻❤️ #love #laugh #share #forgive," she captioned the snaps.
And to make matters even cuter, Wolfie has his own Instagram account.
Wolfie's profile is understandably set to private, but social media fans are able to catch a glimpse of him in the profile picture, smiling in what appears to be a garden.
He already has 80 followers including his dad Edoardo, who chooses not to share pictures of his son online.
In 2021, to honour World Book Day, Princess Beatrice revealed how reading and homeschooling her stepson was one of her biggest joys during lockdown.
Beatrice told the Evening Standard, "My stepson has been home schooling. Helping him engage with stories is a great journey to inspire imagination, creativity, independence and humor."
More recently she opened up to Hello Magazine about her relationship with Christopher, calling him her "bonus son".
"But I've felt very lucky to have had the chance to work with my bonus son (Wolfie) over the course of the school closures. It was a huge learning curve for all of us," she said.
It's clear that Wolfie is very important to Beatrice too with a friend of the princess's confessing to PEOPLE: "He is very much part of their life."
"Beatrice has embraced the child as part of her life from the outset," they added.
Beatrice and Edoardo welcomed their first child - a baby girl - on September 18 and the royal statement even included a sweet nod to Christopher.
Now the proud new parents are excited to "introduce their daughter to her big brother" and start life with the newest addition to their growing family.