Where Princess Beatrice's daughter Sienna sits in the British line of succession

With Princess Beatrice welcoming her first child, the line of succession to the British throne has once again undergone a shuffle.

Beatrice, 33, and husband Edoardo Mapelli Mozzi confirmed the arrival of their daughter on September 18 in a statement issued via Buckingham Palace.

Sienna Elizabeth Mapelli Mozzi is now 11th in line to the British throne, with her mother remaining in the 10th position.

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Sienna bumps her aunty Princess Eugenie and cousin August Brooksank down a place each, making Eugenie 12th in line and August 13th in line to the throne.

Prince Edward also moves down to the 14th spot, followed by his two children with Sophie, the Countess of Wessex: James, Viscount Severn moves to the 15th spot and Lady Louise to the 16th.

Princess Anne, who was previously 16th in line to the British throne, moves to 17th.

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Her son Peter Philips moves to 18th position, and his daughters Savannah and Isla to 19th and 20th. Zara Tindall and her three children also move down the line of succession, with Zara in spot 21, Mia at 22nd, Lena at 23rd and son Lucas at 24th.

Princess Anne, the Princess Royal, doesn't have her rightful place in the line of succession as she was moved down the list upon the births of her younger brothers in accordance with the rules governing the line of succession at the time. Similarly, Lady Louise followers James, Viscount Severn in the line despite being older than him.

This rule was changed in time for the birth of Princess Charlotte in 2015.

Princess Beatrice and Edoardo Mapelli Mozzi, who married in a small ceremony in Windsor in 2020, announced their daughter's birth on Monday, September 20.

"Her Royal Highness Princess Beatrice and Mr Edoardo Mapelli Mozzi are delighted to announce the safe arrival of their daughter on Saturday 18th September 2021 (8.42am Monday, September 19 AEST), at 23.42, at the Chelsea and Westminster Hospital, London," the official palace statement read.

"The new baby's grandparents and great-grandparents have all been informed and are delighted with the news. The family would like to thank all the staff at the hospital for their wonderful care.

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"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."

The baby weighed in at 2.78kg, or 6 pounds and 2 ounces.

The couple announced their daughter's name several days later.