Sienna Elizabeth Mapelli Mozzi
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The first child of Princess Beatrice and Edoardo Mapelli-Mozzi, Sienna Elizabeth was born September 18th 2021 at Chelsea Westminster Hospital in London. She was named for her maternal great-grandmother, the Queen. She is currently 10th in the line of succession.
She has an older half-brother (Christopher "Wolfie" Mapelli-Mozzi) and one cousin (August Philip Hawke Brooksbank). She resides in London.