Mourners including Kathy and Rick Hilton honor socialite Patty Raynes

Socialite Patty Raynes was laid to rest with a moving memorial service on Sunday.

The sendoff for Raynes — the daughter of late oil baron Marvin Davis, who once owned 20th Century Fox and the Beverly Hills Hotel — was hosted at the Park Avenue home of socialite and philanthropist Jean Shafiroff.

Raynes’ sister, Nancy Davis, and her husband Ken Rickel flew in from LA. We’re told Nancy gave remarks, saying, “You can’t believe how many people called me since Patty’s death to say, ‘I was her best friend.’ But that’s how welcoming she was to everyone.”

Shafiroff told us she opened her home because Raynes herself “made everybody feel welcomed all the time and special.”

She said she offered her apartment after the family struggled to find a venue. “My daughter connected me with [Raynes’s] son Matt,” she said, “[He] wanted to do something very private with only her friends… and I loved Patty and I wanted to honor her.”

Matthew remembered his mom with his own speech, describing her twin passions: “horses” and “embarassing [him] by saying the most inappropriate and funny things,” according to a source.

Matthew noted his mom’s sense of humor, explaining that she’d sent out silly animated images of him as dancing a Santa Claus to “all of NYC.”

“I was so mad, but later realized she was just telling me not to take myself too seriously,” he said.

Raynes’ mother, Barbara, 92, was unable to attend — but Zoomed in on an iPad, we’re told.

Kathy and Rick Hilton were a part of the West Coast set of friends, who flew in to say their final goodbyes.

Also at the memorial were: Denise Rich, Danny Baker Jr., Libbie Mugrabi, Peter Thomas Roth, Michele Herbert, Cornelia Sharpe Bregman, Nicole Miller,  Ann Dexter-Jones, Janna Bullock, Candace Buschnell, Frederick Anderson and Anna Rothschild.

Raynes died on April 27 from what the family believes was asthma-related problems.

In lieu of flowers, the family asked guests to “make a donation to Cure Addiction Now Foundation, an organization Patty worked closely with to help fund research to find a cure.”

“She was a living angel, who left this world too early… her memory will forever live on. She left behind her many family members and friends who truly love her,” Shafiroff said.