Caroline Kennedy & Carole Radziwill Attend Lee Radziwill's 'Small and Intimate' Funeral Service

Lee Radziwill, a former princess, actress and socialite and the younger sister of Jacqueline Kennedy Onassis, was honored Monday in New York City with a “small and intimate” funeral service that drew famous faces such as niece Caroline Kennedy, daughter-in-law Carole Radziwill, designer Marc Jacobs and others.

The invitation-only service was held at the Church of St. Thomas More 10 days after Lee’s death at the age of 85. (St. Thomas More was also the location for the memorial mass for Lee’s nephew John F. Kennedy Jr. and his wife, Carolyn Bessette Kennedy, in 1999.)

A close friend who was in attendance tells PEOPLE the service “was small and intimate and appropriate for an elegant — sometimes magical — life that was lived with discretion [and] dignity … even in these chaotic, less than dignified much less discreet times.”

The friend adds that the church was filled with urns of pink and white flowers, as pink was Radziwill’s favorite color, and music from composers Johann Sebastian Bach and Gabriel Faure.

Among the mourners were designers Tory Burch, Carolina Herrera and Jacobs, as well as director Sofia Coppola and fashion editor André Leon Talley, according to Page Six.

Coppola and Lee sat down together in 2013 for a lengthy interview for the New York TimesT magazine.

RELATED: The Truth About Jackie Kennedy’s Turbulent, Loving and Dramatic Bond with Sister Lee Radziwill

Carole Radziwill attends Lee Radziwill's funeral service on Monday in New York City
Carole Radziwill attends Lee Radziwill's funeral service on Monday in New York City
Carolina Herrera (left) at Lee Radziwill's funeral service
Carolina Herrera (left) at Lee Radziwill's funeral service
Mourners attend Lee Radziwill's funeral service on Monday in New York City
Mourners attend Lee Radziwill's funeral service on Monday in New York City

RELATED VIDEO: Carole Radziwill Reveals Intimate Scenes from Lee Radziwill’s Final Years

Ex-The Real Housewives of New York City star Carole Radziwill recently remembered her mother-in-law as “warm but strong-willed” and “both formidable and playful” in a tribute to PEOPLE.

“She still had a razor-sharp wit and intellect,” Carole wrote.

The reality star was married to Lee’s son, Anthony, before his death in 1999.

“In the 20 years after Anthony’s death, Lee always referred to me as her daughter-in-law. We fell into a comfortable routine of casual dinners, sometimes a movie,” Carole wrote in her tribute. “Dinners were always the same: her apartment, at a small card table in her living room with a silk scarf tablecloth. Set perfectly, minimally, for two.”

RELATED: Lee Radziwill in Her Own Words — From Her Relationship with Jackie O. to Her Love for Extravagance

In her 2013 chat with the Times’ T magazine, Lee discussed contentment with her long life.

“Regrets? I think everyone has regrets, and people who say they haven’t are either liars … nor narcissists,” she said. “There have been many things in my life to have regrets about, in the sense I wish I could have changed them, or somehow made them not happen. What I don’t have is envy. I’m perfectly content at this time of my life.

“I’ve done so many fascinating things,” she continued, “and the greatest joy is that I continue to do interesting things and meet fascinating people.”