Cressida Bonas' brother is worried about her safety.
Jacobi Anstruther-Gough-Calthorpe, whose sister is dating Prince Harry, has revealed he is concerned about public intrusion into the 25-year-old beauty's life as a result of her growing relationship with the royal.
He told The Times newspaper: "They're my private family, she's a private person. As the media machine builds around my sister, I'd rather the media machine didn't build around my sister.
"I don't see it ever really affecting my life. My only worry is making sure she is safe and she is OK and she is happy. I don't really think about it all except in the sense of her own safety."
Harry, 29, and Cressida are currently enjoying a skiing trip in Kazakhstan and she is set to join him in co-hosting a royal dinner at St James's Palace later this week.
The couple have been seen out-and-about together numerous times of late, leading to speculation that another royal wedding could soon be on the cards.
Cressida accompanied Harry to the We Day charity event in London earlier this month and they were also spotted canoodling at a rugby match at Twickenham Stadium last moth.

Prince George's new nanny could have been a nun.
Friends of Maria Teresa Turrion Borrallo, the Spanish nanny recently hired to look after the third-in-line to the throne, tipped her to become a nun when she was younger because of her lack of interest in boys and her puritan lifestyle.
One pal told the Daily Express newspaper: "We all thought she would end up becoming a nun because she was such a different girl to the rest.
"She hardly had any friends and she didn't show any interest in boys."
Family hairdresser Antonio Robledo told Spain's El Mundo: "She is very special and shy and I've never known her to have had a boyfriend. Above all she's a good person."
Maria Teresa's brother Luis chose a life in service to god three years ago when he was ordained as a deacon, but his sister followed her passion for childcare.
Luis has since moved into working for a hospital, aiding mentally ill patients.
The royal nanny's mother Maria Teresa - who still lives in her hometown of Palencia, Spain - recently gushed over her daughter's new job.
She said: "I am very proud of my daughter, that's all I can say. On the personal front, and professionally, my daughter couldn't be better."

The Rolling Stones will resume their world tour in Israel this summer after postponing dates following the death of Sir Mick Jagger's girlfriend L'Wren Scott.
The 'Brown Sugar' hitmakers have confirmed they will perform in Tel Aviv, after moving dates in Australia and New Zealand to October, as part of their '14 ON FIRE' tour, after L'Wren committed suicide at her New York apartment on March 17.
Promoter Shuki Weiss announced today (25.03.14) that the Rolling Stones will be gracing the stage at Park Hayarkon in Tel Aviv on June 4.
In a statement, he said: "This is a historic and very meaningful visit. In these days when we hear calls for boycotts from around the world, it's not taken for granted that a band of this magnitude will come to Israel."
Shuki has worked with the likes of Madonna and Depeche Mode in the past but claims persuading the Stones to sign up for the show has been his biggest challenge.
He admitted: "The longest negotiation I ever conducted is coming to an end."
The band - also made up of Charlie Watts, Ronnie Wood and Keith Richards - were recently confirmed for Denmark's Roskilde Festival which takes place from June 29 to July 6.
Meanwhile, preparations are being made for L'Wren's funeral, which will take place in Los Angeles in coming days after her body was moved to the Hollywood Forever Funeral Home and Cemetery.

Andrea Bocelli has married his long-term partner Veronica Berti. The Italian opera singer - who was blinded at the age of 12 - tied the knot with Veronica before friends and family in an intimate wedding ceremony at the Sanctuary of Montenero in Livor...

Ricky Wilson says he'll return to 'The Voice' - if Kylie Minogue does.
The pint-sized popstar is set to leave the BBC One singing competition after just one series because of her upcoming 'Kiss Me Once' tour, but the Kaiser Chiefs frontman says he signed up for the show to work with Kylie and would be bitterly disappointed if she didn't return.
He told The Sun newspaper: "We have known each other for such a long time.
"She is one of the reasons why I did it and one of the reasons why I'd stay. People like the show -- they like the chemistry."
BBC bosses are desperately trying to lure Kylie, 45, back for the next series of 'The Voice' after she threw plans into disarray by announcing her intention to leave the show.
The blind auditions for the fourth series would begin filming in November, but Kylie will be touring at the time.
She said: "I'm touring later this year and the timings wouldn't work.
"We started filming in November last year and I'm on tour in September, October and November this year ... I have loved doing the show although there have been parts that have been really emotional."
But a BBC spokesperson stressed the corporation is willing to accommodate Kylie's schedule in order to secure her services.
They said: "We are aware of Kylie's commitments and are looking to accommodate them."

Bruce Jones has warned Michael Le Vell to clean up his act.
The former 'Coronation Street' actor was axed from his role as Les Battersby in 2007 due to his alcohol problems and he is worried his co-star and pal, who was recently suspended for cocaine use, could end up losing it all like him.
The Kevin Webster actor has had a tumultuous 18 months that saw him face trial for alleged sex assault crimes. He was cleared of all charges in September and returned to the ITV soap recently, but has now been dropped again after admitting to Class A drug use.
Bruce told the Daily Mirror newspaper: "I went to see Michael before his trial and wished him all the best and was looking out for him.
"I don't want what happened to me to happen to Michael.
"I ended up on the streets, completely broke with nowhere to go - it was an awful time. I know he can beat his demons though, he's stronger than me and a great actor."
Bruce, 61, has now turned his life around and has urged Michael, 49, to do the same by throwing himself into his work.
He added: "He's got to not be scared of life and get on with things. He needs to go and talk it out, he mustn't bottle it up."

Timothy West says TV soaps don't value older characters enough.
The 79-year-old star has just joined the cast of 'EastEnders' as Danny Dyer's on-screen dad Stan Carter and is glad he is able to breathe new life into the soap's older generation.
Asked whether older actors were represented enough in soaps, he told Radio Times magazine: "I find they're not valued so much and I suspect that's one of the reasons why I've been brought in [to 'EastEnders']. From what I hear, there hasn't been enough interest in older characters.
"Or enough older characters to be interested in. I do, though, have enormous respect for June Brown [Dot Cotton]."
However, Timothy insists that isn't the main reason he accepted the role and claims it's simply an advantage.
He added: "I took it because it's a good part."
While the theatre veteran doesn't think there was a "golden age" of television, he does regret the demise of the weekly play and believes soaps have filled that gap for the British public.
Timothy explained: "I do miss things like the single play. It was the event of the week. Now you have more channels, you don't get that conversation at the bus stop about what you saw last night.
"[Soaps are] not the same. But, in one way, they are similar, in that they offer an alternative to genre serials like police dramas. You know the detective is always going to solve the crime. But soap operas put characters in different situations that often have different outcomes."

EastEnders' Lucy Beale is to hide a big secret in the build-up to her death. The bossy blonde - played by Hetti Bywater - will find herself in a sticky situation next week after Lauren Branning (Jacqueline Joss) suspects there's something going on b...

Luisa Zissman has challenged Helen Flanagan to a mud-wrestling fight.
The former 'Celebrity Big Brother' star says she would be happy to strip down to her underwear and tackle the former 'Coronation Street' star in a pool of mud, following her sensational claims last year that she would win in a "boob-off" with the actress.
Luisa told Zoo magazine: "I was only joking around, but given how crazy that story went, I would be bang up for a mud-wrestling shoot with Helen.
"We've cleared the air [now]. I'm a fan and didn't want her to think I was slagging her off. She was really sweet and suggested we go out for a coffee. Hopefully we'll meet up next time she's in London."
Luisa - who has openly admitted to hosting sex parties before rising to fame on 'The Apprentice' - also dished on her "pretty flirty" encounter with 'Made In Chelsea' lothario Spencer Matthews at a party but insists they could never date because she would be too dominating in their relationship.
Luisa, 26, added: "He's got a reputation as a Casanova, but I would eat him alive. I whipped him a bit with a riding crop; it was a sort of S&M party."
Meanwhile, Luisa says she hopes to "enrich the sex life of Britain" in her new role as a sex advice columnist for Zoo magazine.

Scarlett Johansson wants to "selfishly" juggle her career with family life.
The 'Captain America: The Winter Soldier' actress is expecting her first child with fiance Romain Dauriac and while she insists she won't put herself under too much stress by working too hard at the expense of her home life, she still wants to "have it all".
She said: "It seems so stressful to not be able to spend time with your family because you're constantly chasing the tail of your own success. There must exist a world in which I can balance those things... Be able to raise a family and still make a film a year, or work on my own, develop things, do theatre. I want to be able to have it all. Selfishly."
However, the 29-year-old beauty also knows she will have to make "sacrifices" and things won't be easy.
Speaking to Wall Street Journal magazine, she said: "I know that with that there will be some sacrifices. I know that's the struggle with working mothers and successful careers. It happens."
The 'Avengers' actress - who was previously married to Ryan Reynolds - has been voted Sexiest Woman Alive on several occasions, but she thinks there may be a change in perception once she has a child.
She said: "With [male actors] it just doesn't happen that way. You can be every woman's fantasy, and nobody thinks twice about the fact that you have eight kids or whatever."

David Beckham wants to buy his own taxi.
The retired soccer star - who has children Brooklyn, 15, Romeo, 11, Cruz, nine, and two-year-old Harper with wife Victoria - has been shopping for an iconic London black cab as he hopes the vehicle would help him blend in amongst other motorists.
A source told the Daily Star newspaper: "David reckons having a London taxi will help him sneak around incognito.
"Being one of the most recognisable faces on the planet means it's sometimes hard for him to do his normal day-to-day errands.
"He loves his fans, and always tries to make time for them, but sometimes he just wants to nip out to the shop like a normal person.
"People usually spot his flash cars a mile off, so he thinks a low key taxi would be the perfect disguise in London.
"Plus if he's running late, he could use taxi lanes and get away with it!"
David is no stranger to coming up with clever ways to go undetected in public.
Last October, the 38-year-old hunk attended a Halloween party in New York without a costume, but when asked who he was dressed up as, just said himself - and was complimented on his convincing disguise.
A source said at the time: ''Beckham was practically the only person at the party not in costume - but because of this barely anyone recognised him.
Somebody asked him, 'What's your costume?' He said, 'I'm going as David Beckham,' and the person replied, 'Wow, you look just like him!' ''

Beyoncé's handmade tour outfit was stopped by customs.
The 'XO' hitmaker is set to kick off the European leg of her 'Mrs Carter World Tour' in Portugal tomorrow (26.03.14), but there was a frantic panic a few days ago when her one-legged jumpsuit, which she'll wear on the opening night, was refused entry by the EU authorities.
The attire, made from silver cobra, was designed by Rubin Singer, who uses rare skins from Europe and Asia and moulds them into stunning fashion pieces.
However, the 32-year-old singer's stylists sorted out the paperwork with customs and the outfit arrived just in time for her glamorous show tomorrow night, according to the New York Post newspaper.
Meanwhile, the blonde beauty has just finished her UK and Ireland leg of the tour, which saw her intersperse old favourites such as 'Crazy in Love' and 'Single Ladies' with tracks from her fifth studio album, 'BEYONCE', which she released with no forewarning in December.
Beyoncé ended her concerts with the uplifting 'Halo' and a cover of 'I Will Always Love You'.
However, the final act also included the poignant new ballad 'Heaven', in which the star sings of the death of a loved one.