Julie Montagu, Viscountess Hinchingbrooke

The series brought financial stability which allowed the couple to invest further in the Mapperton Estate, turning an old stable block into a wedding venue. Julie also opened her own school of yoga on the grounds, but continues to practice yoga elsewhere, headline an act at the Wanderlust yoga festival in Victoria Park, London. During the lead-up to the wedding of Prince Harry and Meghan Markle, Julie Montagu was interviewed on a number of occasions because she is a US citizen who married into British aristocracy; she was also an on-site commentator on the wedding for the BBC. She was also interviewed following such events as Markle's father selling a private letter his daughter had sent him, and the royal couple's break from the monarchy in 2020.

She was then offered a position on the reality television series Ladies of London as her husband was recovering. She later said of the series, "We thought long and hard before accepting as it offered financial support for a while. But it was not fun to do. I was expected to behave in a way I wasn't, like an It girl or socialite, when I'm not. They edit you... You have to go along with things or you get fired. But you know it was a job. I was acting." She celebrated when it was cancelled after three seasons. In 2016, the couple took over the running of the Mapperton Estate.

Julie Montagu, Viscountess Hinchingbrooke (born 17 February 1972) is an American entrepreneur, yoga instructor, blogger, writer and reality television star.

Julie Fisher was born on 17 February 1972 to Thomas Fisher, and was brought up in Sugar Grove, Illinois, as one of five siblings. She went on to study computer science at Indiana University. Fisher moved to London to work for an internet-based company, and was setting up a film school when she met Luke Montagu. She was a single mother at the time, and had assumed he was not interested in her. Three months after they began dating, she noticed that one of his payment cards had "Viscount Hinchingbrooke" written on it. Only then did he explain that he was a member of the aristocracy and his father was the current Earl of Sandwich. A year after they first met, they married at Mapperton House, Dorset, the country estate of the Earl of Sandwich.