By Alex Greig and Associated Press PUBLISHED: 01:56 EST, 30 December 2013 | UPDATED: 12:31 EST, 30 December 2013 George Jacobs, who was Frank Sinatra's valet and confidant for 15 years, has died. Jacobs' son, Snake Jagger, says his father died of natural causes in Palm Springs Saturday night. He was 87. Jacobs was working for Hollywood dealmaker Irving 'Swifty' Lazar in 1953 when Sinatra hired and entrusted him with his personal affairs. Mr S: Jacobs (pictured with Sinatra) was the valet and confidant of Frank Sinatra between 1953 and 1968 Jacobs' 2003 book, 'Mr. S: My Life with Frank Sinatra,' gives an insider's look into the crooner's life, his women and his dealings with the Kennedys, the Rat Pack and the mob.
@highlight
George Jacobs, 87, died in Palm Springs Saturday night
@highlight
Between 1953 and 1968, he worked as Frank Sinatra's valet
@highlight
He lived with the star and traveled the world with him
@highlight
Sinatra fired Jacobs after a gossip columnist wrote that he was dancing with Sinatra's soon-to-be ex-wife Mia Farrow
@highlight
Jacobs wrote a memoir about those years called Mr S: My Life with Frank Sinatra
@highlight
He was married and divorced three times and had eight children
Last dance: @placeholder and Mia Farrow (seen here on their wedding day) were divorcing when George Jacobs danced with her and was fired by Sinatra