A small treasure trove of Sinatra history will be made available for purchase in December in live and online auctions.

"Lady Blue Eyes: Property of Barbara and Frank Sinatra" will be auctioned by Sotheby's on Dec. 4 and 6 in New York, and a portion of the proceeds will benefit the Barbara Sinatra Children's Center in Rancho Mirage.

Barbara Sinatra, dubbed "Lady Blue Eyes" in her 2011 memoir, was married to Frank Sinatra for almost 22 years — longer than his three other marriages combined.

Their primary home was a compound on Frank Sinatra Drive in Rancho Mirage, which the couple sold to Canadian entrepreneur Jim Pattison, owner of the Ripley's Believe It Or Not museum chain, three years before the entertainer's death in 1998.

The items for sale are drawn from the residences the Sinatras shared in Beverly Hills and Malibu, and the house Barbara Sinatra purchased in Rancho Mirage after her husband's death.

The auction lot includes lavish jewelry, personal papers, scripts from Sinatra movies and paintings by artists ranging from Pablo Picasso to Norman Rockwell.

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Here's a peek at some of the items set to hit the auction block in December:

Frank Sinatra's former publicist, Jim Maloney of La Quinta, said Sinatra personally commissioned Norman Rockwell to do the oil on canvas portrait of him in 1973.

Sotheby's values it at between $80,000 and $120,000.

Started as a hobby, Palm Beach, Fla., artist Dodie Thayer's pottery became a must-have status-symbol in the mid-1960s through the 1980s.

The uniquely shaped forms of her plates, cups, saucers, tea pots, and bowls resembled lettuce and cabbage leaves.

The line of items quickly became collectibles and reportedly were a favorite of such notable celebrities as former first lady Jacqueline Onassis, interior designer Todd Romano, and Frank and Barbara Sinatra.

The Sinatras' collection is valued at $70,000.

Frank Sinatra's lovable gang of buddies, which included his longtime friends Dean Martin and Sammy Davis Jr., always seemed to be just a step away.

Two black-and-white photographs of Sinatra's friends, including this candid pic of Martin and Davis, will be up for grabs in December at Sotheby's.

The two photographs are each valued between $800 and $1,200.

A Barbara Sinatra diamond ring, weighing 20.60 carats, will also hit the auction block this December.

According to Sotheby's, this bit of bling is valued at $1 million to $1.5 million.

Frank Sinatra was close with President John F. Kennedy.

He actively campaigned for him during Kennedy's presidential bid in 1960 and helped to plan Kennedy's Inaugural Gala, which was held the evening before Kennedy was sworn into office.

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Upon learning of Kennedy's assassination on Nov. 22,1963, Sinatra, who had been filming a movie in Burbank, reportedly retreated to his Palm Springs home and cried for three days.

A photograph of Sinatra with the president during the 1961 Inaugural Gala will head to the auction block.

Sotheby's values it between $400 and $600.

A second item that recalls Sinatra's well-known friendship with President Kennedy is this set of books described as the Public Papers of President John F. Kennedy (1962-1964), which were bound and presented to Sinatra.

The volumes are valued at between $4,000 and $6,000.

An art lover who was also a painter himself, Sinatra had a great appreciation for oil on canvas works.

The 1938 Walt Kuhn oil on canvas, "Girl With Turban (Zuleika)," from the Sinatra collection, is valued between $300,000 and $500,000.

Barbara Sinatra died July 25, 2017, at age 90, and she is buried next to her husband in Desert Memorial Park cemetery in Cathedral City.

The auction items will be open for public exhibition in Sotheby’s New York galleries beginning Nov. 30.