Jazz Jubilee.

(By Lance).
This being Jubilee weekend it seems appropriate to me to list those jazz people with titles. That they were mainly either self imposed or created by the media is irrelevant. Below is my choice followed by Wikipedia's selection. You may care to add your own.
Empress: Bessie Smith (Empress of the Blues)
Kings: Oliver, Curtis, Pleasure (I & II). Louis Prima (King of the Swingers).
Queen: Dinah Washington (Queen of the Blues).
Princes: Lasha, Robinson.
Dukes: Ellington, Jordan, Pearson.
Count: Basie.
Earls: Warren, Hines, Grant, Klugh.
Baroness: Pannonica de Koenigswarter.
Sir John Dankworth.
Sir George Shearing.
Dame Cleo Laine.
Wikipedia...

• God: Art Tatum^[2]
• The King: Joe "King" Oliver, Nat "King" Cole, Paul Whiteman, Buddy Bolden, Freddie Keppard
• The Mr. Lord: Jelly Roll Morton
• The King of Swing: Benny Goodman^[3]
• The King of the Clarinet: Artie Shaw
• "The King of the Jukebox": Louis Jordan
• The Queen: Peggy Lee
• The Duke: Duke Ellington
• The Count: Count Basie
• The Earl: Earl Hines, more commonly called "Fatha"
• The Court Jester: Ornette Coleman
• The Major: Glenn Miller, which in fact was his military rank during World War II
• The Prince of Darkness: Miles Davis^[4][5]
• Sir Roland Hanna, knighted by Liberian President William Tubman in 1970.
• Sir Charles Thompson was 'knighted' by Lester Young.
• High Priest of Bop: Thelonious Monk^[6]
• High Priestess of Soul: Nina Simone
• The Baron: Charles Mingus
• The Maharaja: Oscar Peterson^[7]
• The First Lady of Song (also Jazz): Ella Fitzgerald
• President (Prez): Lester Young
• Lady Day: Billie Holiday, along with her mother (Sarah Julia "Sadie" Fagan), upon whom Lester Young bestowed the title of the Duchess
• The Divine One: Sarah Vaughan
• The Chairman of the Board: Frank Sinatra^[8]
• The King of Cool: Dean Martin
• The Emperor of Easy: Andy Williams
• The Jezebel of Jazz: Anita O'Day
• King of Jazz Guitar: Django Reinhardt^[9]
• Lance.