Princess Beatrice and Edoardo Mapelli Mozzi have named their baby girl Sienna Elizabeth

• Princess Beatrice of York has named her baby girl Sienna Elizabeth Mapelli Mozzi.
• The baby was born at Chelsea and Westminster Hospital in London on Saturday.
• The baby's middle name is a likely tribute to her great-grandmother Queen Elizabeth II.

Princess Beatrice of York and Edoardo Mapelli Mozzi welcomed their daughter on Saturday, September 18.

The couple have named their royal baby Sienna Elizabeth Mapelli Mozzi, the royal family annnounced Friday on Instagram.

"Her Royal Highness Princess Beatrice and Mr Edoardo Mapelli Mozzi have named their daughter Sienna Elizabeth Mapelli Mozzi," a spokesperson for the royal family wrote on Instagram, alongside a photo of two footprints.

"The couple have said, 'We are all doing well and Wolfie is the best big brother to Sienna,'" the spokesperson added.

The name Sienna is of Italian origin, according to Family Education, and was likely chosen due to Mapelli Mozzi's Italian heritage. The middle name Elizabeth was likely chosen as a tribute to the baby's great-grandmother, Queen Elizabeth II.

The baby was born at Chelsea and Westminster Hospital in London, weighing 6 pounds and 2 ounces, Buckingham Palace announced in a statement on September 20. The palace added that the baby's grandparents and great-grandparents "have all been informed and are delighted with the news."

Beatrice and Mapelli Mozzi married in a socially distanced ceremony on July 17, 2020, which was attended by their parents, the Queen, and the late Duke of Edinburgh.

Beatrice is 10th in line to the British throne and a granddaughter of the Queen. Mapelli Mozzi is a property specialist from England and comes from a long line of Italian counts.

His father, Alessandro Mapelli Mozzi, previously told the Mail Online that Beatrice would be entitled to take a countess title when she married into the family, styled in Italian as "Contessa" and "Nobile Donna" and that their children would also be able to inherit a title, despite the fact that Italy has not formally recognized a nobility since 1946, as a Today article notes.