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Kathy Hilton and Kyle Richards’ Mother Was Once Rumored to Be a Hollywood Madame and Other Scandalous Facts About Big Kathy

New ‘Real Housewives of Beverly Hills’ fan favorite Kathy Hilton’s introduction on the show has given fans more insight into the extravagant world of the Richard sisters. Kyle Richards and the third sister, Kim have both had some scandalous moments on the show. But the most interesting of them all may be their mother Big Kathy.

Kathy Hilton and Kyle Richards’ mother may be the only family member who can steal the spotlight from the Real Housewives of Beverly Hills stars. The Bravo reality TV show continues to deliver more insight into the world of the Richards sisters to the delight of its audience.

While keeping up with Kyle’s marriage or Kathy’s famous daughters attracts fans, many viewers seem fixated on the reality stars’ mother. So just who is Kathy Hilton and Kyle Richards’ mother?

Kathy Hilton and Kyle Richards’ mother was married at least 4 times

The book House of Hilton came out at a time when Paris Hilton was making headlines for being famous for nothing. The focus is primarily on Kathy’s oldest daughter. But there’s also a lot of juicy details about other members of the Hilton family —  including Kathy, Kyle, and Kim’s mom, Big Kathy.

Her full name was Kathleen Dugan Avanzino Richards Catain Fenton. And all of those last names came from her numerous marriages. She was married at least four times. And it’s possible she married the same man twice.

Kyle Richards’ mother gave her kids unusual marriage advice

According to the book, Big Kathy had quite the life philosophy — especially when it came to marriage. Apparently, she instructed her daughters and granddaughters from an early age to follow in her footsteps by marrying rich men and having a lot of babies. At one point, she bragged that her daughters “are married to men who have a total net worth of $13 billion.”

When it came to her own relationships, Big Kathy had her eye on Kyle and Kim’s dad Ken Richards when he was still married to another woman. The book alleges that Big Kathy and Ken had an affair. And one night, she drugged Ken’s wife at a bar before following her to her vehicle and slamming her ankle in the car door.

House of Hilton also alleges that once Big Kathy hooked up with a guy — either through marriage or having children with him — she lost interest. She reportedly bragged about her treatment of her last husband Bob.

“I don’t do s*** for Bob. I won’t travel with him, I won’t cook for him, I won’t do anything for him,” Big Kathy allegedly said.

Kathleen Dugan was rumored to be a Hollywood Madam

Big Kathy allegedly used the power of sex when manipulating the men in her life. And she taught her daughters how to do the same.

“Big Kathy told Ken that she wanted Kathy Hilton to know all about sex, and how to perform sex, literally, the best way possible,” Sylvia Richards asserts in House of Hilton. “So she asked a young man to teach her in his van.”

Big Kathy also took her philosophy of hooking up with rich men and turned it into a business. She was rumored to have been a Hollywood Madam because she hooked up so many young girls — who were friends of her daughters — with rich, older men.

The book claims that Big Kathy forced Bob to sell his home and put the $250,000 he received in profits into renovations for her home in Palm Springs. One of Big Kathy’s final wishes was for Bob to move out of the house he helped pay for. She gave him one year to leave because in her will, she left the home to her daughters.

Did Kyle Richards steal Big Kathy’s house from Kathy Hilton and Kim Richards?

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‘RHOBH’: Kyle Richards’ Husband Mauricio Umansky’s Shrewd Move Was the First ‘Setback’ in Her Relationship With Kathy Hilton

Real Housewives of Beverly Hills fans may recall that way back in season 1, Kim famously accused Kyle of stealing a house from her sisters. Some believe that the house Kyle “stole” was Big Kathy’s house that she forced Bob out of. It was just one example of Kyle Richards’ feuds with her sisters.

Kim screamed her accusation at Kyle from the back of a stretch limo, and Kyle responded with an epic death stare. Then she told her sister, “Mom had to die worrying about you and stressing over you…You’re a liar and sick and an alcoholic.”

Kathy Hilton and Kyle Richards’ mother died in 2002 at the age of 63 from breast cancer. At the time, she had been married to Robert Fenton, Jr. since 1999.