Princess Eugenie and Beatrice’s babies both share same unique trait never seen before in Royal Family

Princess Eugenie and her husband Jack Brooksbank have announced the birth of their third child, a little girl - and she shares a very unique trait with her cousin, Princess Beatrice’s daughter Athena.

Announcing the exciting news of their new addition on Instagram on Tuesday (4 August), the 36-year-old royal wrote: “Jack and I are so excited to announce Baby Girl Brooksbank!! We are beyond in love with our girlie.”

The couple, who also share two sons, August, five, and Ernest, three, shared a sweet photo of the baby girl in a pink onesie, but have yet to reveal her name.

Breaking away from tradition, the little one was born on Monday at a hospital in Lisbon, Portugal, rather than in the UK, with Eugenie and Jack having a home and other connections in the country.

The baby girl also has a unique trait that is only held by one other member of the family - her cousin, Princess Beatrice’s daughter Athena, who was born in January 2025.

The royal announced the birth in a post on Instagram, while Buckingham Palace also released a statement (Instagram/@princesseugenie)

Athena was the second child of Beatrice, who also shares another daughter called Sienna with her husband Edoardo Mapelli Mozzi, as well as a stepson, Christopher Woolf.

Princess Eugenie’s new addition and Beatrice’s youngest, Athena, are the first Royal Family members to be part of Generation Beta, aka ‘Gen Beta’ for short.

For context, Generation Beta is the cohort that succeeds Generation Alpha, and is made up of those born between 2025 and 2039, and could end up being the first generation to live into the 22nd century.

Demographer and social researcher Mark McCrindle coined the term and explained in a blog post last year that he named the two latest generations Alpha and Beta to signify ‘not just new generations, but the first generations that will be shaped by an entirely different world’.

He wrote that they will 'grow up in a world shaped by breakthroughs in technology, evolving social norms, and an increasing focus on sustainability and global citizenship'.

“For Generation Beta, the digital and physical worlds will be seamless. While Generation Alpha has experienced the rise of smart technology and artificial intelligence, Generation Beta will live in an era where AI and automation are fully embedded in everyday life - from education and workplaces to healthcare and entertainment,” he predicted.

Beatrice's baby girl Athena, who was born in January 2025, is also part of Generation Beta (JUSTIN TALLIS/Getty Images)

The expert added that Gen Beta will ‘inherit a world grappling with major societal challenges’.

He penned: “With climate change, global population shifts, and rapid urbanisation at the forefront, sustainability will not just be a preference but an expectation.

“This generation will be raised by Millennial and older Gen Z parents, many of whom prioritise adaptability, equality, and eco-consciousness in their parenting.

“This will result in Generation Beta being more globally minded, community-focused, and collaborative than ever before.

“Their upbringing will emphasise the importance of innovation not just for convenience, but for solving the pressing challenges of their time.”