Isabella Calthorpe: The Elegant Actress, Model and Society Figure Behind the Branson Family Connection

Isabella Calthorpe is an English actress, model and socialite who is also known by her married name, Isabella Branson. Her full birth name is Isabella Amaryllis Charlotte Anstruther-Gough-Calthorpe. She was born on 3 March 1980 in Winchester, Hampshire, England, and is 46 years old as of 2026.

She comes from a well-known British family with aristocratic and society connections. Over the years, she has been recognised for her acting work, modelling background, public appearances and marriage to Sam Branson, the son of Sir Richard Branson and Joan Templeman. Although she has often appeared in society pages, her profile is also shaped by education, theatre training, film roles and family life.

Isabella Calthorpe Early Life and Family Background

Isabella was born into a prominent British family. Her father is John Anstruther-Gough-Calthorpe, and her mother is Lady Mary-Gaye Curzon. Through her mother, she is connected to the Curzon family, as her maternal grandfather was Edward Curzon, 6th Earl Howe. Her family background placed her close to British social and aristocratic circles from an early age.

She has several siblings and half-siblings. Her full siblings include Georgiana Calthorpe, an artist, and Jacobi Anstruther-Gough-Calthorpe. Her half-siblings include actress and model Gabriella Calthorpe and actress Cressida Bonas, who is also known for her past public association with Prince Harry.

Family Connections

Isabella’s family has long been connected with British society, arts and public life. Her relatives include creative professionals, public figures and members of well-known families. After marrying Sam Branson, she also became connected to the Branson family, one of Britain’s most recognised business families.

Isabella Calthorpe Education

Isabella received a strong education before entering acting. She studied at Heathfield School, Ascot, and later attended Bradfield College. She then went to the University of Edinburgh, where she studied Classics and Art History. This academic background reflects her interest in culture, history and the arts.

After university, she trained at the London Academy of Music and Dramatic Art, one of the United Kingdom’s respected drama schools. She attended LAMDA from 2003 to 2005, preparing herself for a career on stage and screen. This formal acting training helped her move into professional roles in film and television.

Isabella Calthorpe Acting Career

Isabella Calthorpe began her acting career in the 2000s. She worked as a stage actress and also appeared in films and television series. Her screen career includes roles in period drama, thriller, comedy and television drama.

She appeared in Stage Beauty in 2004 as Lady Jane Bellamy. She later appeared in The Inspector Lynley Mysteries in 2006, playing Emily Proctor in the episode “Chinese Walls”. In 2008, she appeared in Harley Street as Miranda Cost and also had a role in How to Lose Friends & Alienate People.

Film and Television Work

Her other acting credits include Trinity, where she played Rosalind Gaudain, and The Prisoner, in which she appeared in two episodes. She also appeared in the horror thriller 13Hrs, released in the United States as Night Wolf. In 2011, she appeared in Blooded, and in 2013 she played Detective Carter in Fedz.

Although her acting work was most visible between the mid-2000s and early 2010s, these roles helped establish her as more than a society figure. She had a genuine acting career supported by professional training and screen appearances.

Modelling and Public Image

Alongside acting, Isabella has also been known as a model and society figure. Before marriage, she was often seen in society magazines and at public events. Her elegant public style, family background and connections to well-known British figures made her a familiar name in social circles.

Isabella Calthorpe and Sam Branson

Isabella married Sam Branson on 6 March 2013. Sam is a filmmaker, entrepreneur, musician and philanthropist, and the son of Sir Richard Branson, founder of the Virgin Group. After marriage, Isabella became known as Isabella Branson.

The couple married in South Africa, at a private safari lodge near Kruger National Park. Their wedding attracted public attention because of both families’ social profiles. Guests reportedly included members of royal and society circles, including Princess Beatrice and Princess Eugenie.

Married Life and Children

Isabella and Sam Branson have two children together. Their daughter, Eva-Deia Branson, was born on 19 February 2015. Their son, Bluey Rafe Richard Branson, was born on 18 January 2017.

Publicly, the couple appear to maintain a warm family life. Sam Branson has shared affectionate posts about Isabella, referring to her lovingly and celebrating their relationship. There is no reliable current evidence that the couple have split. Recent public posts suggest that they remain together and continue to share family life.

Isabella Calthorpe and Prince William

Isabella was once mentioned in older media reports in connection with Prince William. These reports mostly described her as someone who was rumoured to have caught his interest before his marriage to Catherine, Princess of Wales. However, this reported link was never officially confirmed.

It is best to describe this carefully. Isabella Calthorpe was linked to Prince William in older British media speculation, but her confirmed long-term relationship is with Sam Branson, whom she married in 2013.

Isabella Calthorpe Net Worth

Isabella’s exact personal net worth is not publicly confirmed. She has worked as an actress and model and comes from a well-connected family, but there is no official public figure for her wealth. Any specific net worth estimate should be treated carefully unless supported by a reliable financial source.

Conclusion

Isabella Calthorpe is a British actress, model and society figure with a rich family background, strong education and a public life connected to both the arts and the Branson family. Born in Winchester in 1980, she studied at respected institutions before training at LAMDA and building an acting career in film and television.

Her marriage to Sam Branson brought her further public attention, but her own story includes much more than her family connections. She is a trained actress, a mother, a member of a prominent British family and a figure who has remained part of the public conversation through her career, relationships and society presence.

FAQs

1. Who is Isabella Calthorpe?

Isabella Calthorpe is an English actress, model and socialite. She is also known as Isabella Branson after marrying Sam Branson, the son of Sir Richard Branson.

2. How old is Isabella Calthorpe?

Isabella Calthorpe was born on 3 March 1980 in Winchester, Hampshire, England. As of 2026, she is 46 years old.

3. Is Isabella Calthorpe married?

Yes, Isabella Calthorpe is married to Sam Branson. The couple married on 6 March 2013 in South Africa and have two children together.

4. Did Isabella Calthorpe date Prince William?

Isabella Calthorpe was once linked to Prince William in older media reports, but the relationship was never officially confirmed. Her confirmed husband is Sam Branson.