Entertainment

Wife goes on

Caroline Kennedy held the train of Carole’s dress at her 1994 wedding to Anthony Radziwill.

Caroline Kennedy held the train of Carole’s dress at her 1994 wedding to Anthony Radziwill. (
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Radziwill (second from left, with mother-in-law Lee Radziwill) at her husband’s funeral in 1999.

Radziwill (second from left, with mother-in-law Lee Radziwill) at her husband’s funeral in 1999. (
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Carole Radziwill is lounging on a chaise at the Bar on Fifth at the Setai hotel, crossing her Louboutin espadrilles. The lithe 48-year-old is decked out in hip-hugging jeans and an ivory cardigan. She’s got a big smile on her face and appears completely at ease for someone about to take her turn as one of the new “Real Housewives of New York City.”

There’s just one thing. She does not want to be photographed with a glass of Champagne.

“You’ll see on the show, I’m like, ‘Enough with the f - - king toasting!’ ” she laughs, poking fun at the Housewives’ propensity to turn every cocktail party into a “moment.”

Radziwill is one of three new cast members joining the reality hit, which premieres its fifth season Monday at 9 p.m.

But she’s not your typical Bravo reality-TV celebrity. There’s no entourage of unnecessary assistants and no strapless cocktail dress worn in broad daylight.

More surprising still: She doesn’t want to watch herself on television. “You get self-conscious, and then you lose something,” she says of the experience.

That said — and as she herself is quick to point out — this isn’t exactly her first rodeo. Radziwill gained national attention when she wed Polish prince Anthony Radziwill in August 1994, marrying into European royalty and, tangentially, American royalty. Anthony was the son of Lee Bouvier Radziwill, the beautiful sister of Jacqueline Kennedy. Anthony’s cousin John F. Kennedy Jr. was his best friend (and best man at his wedding), while his wife, Carolyn Bessette Kennedy, became Carole’s confidant and closest friend.

But in 1999, everything changed. On July 16, John and Carolyn died when their plane went down in the Atlantic Ocean off the coast of Martha’s Vineyard. Less than a month later, Anthony lost his five-year battle with testicular cancer. And just like that, Carole was alone.

In 2003, Radziwill, who had spent nearly two decades working as a journalist at ABC, left to write a memoir, “What Remains,” chronicling her loss. Critics raved about the heart-wrenching book, which landed Radziwill a spot on the New York Times Best Seller List in 2005 and a sit-down with Oprah. “Critical acclaim is great, and it gets you the corner table,” says Radziwill, “but commercial success pays the bills.”

Which brings her to her current venture. Mum’s the word on “Housewife” paychecks (a rep for Bravo declined to comment on finances), but returning cast members will reportedly make $500,000 each this season, while the newcomers will not make nearly as much. Radziwill says only that she considers the show “a job offer.” After leaving ABC, Radziwill began interviewing celebrities for Glamour on a contributing basis, but that gig has ended.

Already, people are talking about Radziwill’s debut on the reality show known for catfights and cocktails.

“The unlikely housewife,” she says, with a knowing laugh.

She says that she and Andy Cohen, the Bravo brain behind the “Housewives” franchise, go way back. Other women have groveled to Cohen to be cast, sometimes even showing up in the background of existing cast members’ filmed parties over and over again. In his memoir, Cohen says that 500 women showed up to audition for the Beverly Hills cast.

Radziwill, to the contrary, was chased. “I could probably count on one hand the number of conversations I’ve ever had about the ‘Housewives’ show with him,” she says.

“But last summer, we had dinner with some mutual friends. And he kind of asked me if I would consider it. My impulse was to say, ‘Are you crazy? Hell no!’ ”

But Cohen is nothing if not persistent. He followed up the next day and convinced Radziwill to consider it. She started meeting with the producers of the show and was surprised to find herself impressed with them. “I got the feeling … that most of them probably would’ve been working in news had reality television not taken over the airwaves 10 years ago,” she says.

“A lot of them had journalism degrees. So there’s a comfort level.”

Still, the over-the-top nature of the show could prove quite controversial for a woman currently famous for being a widow.

“You know, I’ve come to a point in my life where I’m really comfortable with it,” says Radziwill of discussing her past. “It feels really natural to talk about my late husband. I get a joy out of it when I think of those memories.”

In Radziwill’s first “Housewives” scene, Aviva Drescher (cousin of Fran, and also a new face on the show) bombards her with questions and her reaction to the memoir, which Drescher had just read.

“When people just read the book, they’re experiencing that tragedy for the first time. For me, it was 12 years ago,” explains Radziwill.

“So it’s hard for me to get into that frame of mind.”

Consider this new venture a change in the conversation.

“I feel like after what I went through with my husband, there’s a much bigger curiosity about life that I have,” she says.

“I had this to-do list after they all died of all the things that I’d never done. I’m not even a quarter of the way through, but the general consensus of the list is: Try everything, and don’t be afraid.”

So what would her late husband think of all this?

“I think he’d be amused to think of me as a housewife. I wasn’t much of a cook,” she says. “Anthony had a terrific sense of humor. I think he more than anyone else would understand my curiosity about this and my desire to investigate this phenomenon. I think he understood that everything I did, I approached with an open-mindedness and a curiosity and an integrity.”

And her closest gal pal, Carolyn Bessette Kennedy — who kicked off their friendship by leaving Radziwill a note: “Carole, you must seriously get rid of those Gap sneakers. Our friendship cannot proceed in a growth oriented way until you realize how important this issue is to me” — what would she say?

“Oh my God. It’s moments like this that I miss her the most,” says Radziwill. “We would just be on the phone endlessly into the wee hours of the night talking about, ‘Can you believe this happened and then this happened?!’ ”

Still, Radziwill concedes: “She would’ve been protective of me because of the curiosity about the show and the people on the show.”

Of course, being on the series will open Radziwill up to criticism. She made waves last month when she arrived at the TV Land Awards in a sheer Naeem Khan dress with a visible bandeau and boy shorts underneath. Some loved it, some hated it — and others took it as an opportunity to gawk.

“I read somewhere that I’ve had a facelift, a breast job and lipo,” laughs Radziwill, who denies having had these procedures.

But gawking is an essential part of the appeal of “Housewives.” And while it looks like Radziwill is likely the voice of reason on the show, she may have some drama here or there.

Coming into the series, Radziwill was already nervous about one castmate.

“I thought Ramona [a cast member, known for her love of wine and conflict] might be someone who would just drive me crazy,” she says.

Radziwill won’t say for certain, but it does appear the topic of royal titles will be a hot one. Series veteran LuAnn de Lesseps loves to flaunt her countess title, but Radziwill is less than comfortable with her princess moniker.

But for her tagline in the show’s opening montage Radziwill, hands on hips, says: “I may be a princess, but I am definitely not a drama queen.”

“I know, I know!” she says. “Listen, it wasn’t my first choice. The original one that I wanted was ‘I’m a writer. I like to keep my drama on the page.’ But I understand the appeal, and I understand the show.” She also understands how to work it to her advantage.

“If a reality fan watches the show and is interested in me, and wants to read one of my books because I had a disagreement with one of the ladies, I’m cool with that,” she says.

Radziwill’s story arc this season will also revolve around her writing, following her as she completes her second book, “The Widow’s Guide to Sex and Dating.” Despite what it sounds like, Radziwill says it’s a purely fictional novel. “It’s satire,” she says. “[The widow] is sort of like me, but all the things I wish I had said on dates.”

Of course, the whole experience could crash and burn, as it has for some castoffs and villains of the series. “There’s risk in everything; this is just another risk I’m willing to take and not know how it turns out,” says Radziwill. “And that’s OK.”

gregorymiller@nypost.com