Glad (Bulgarian: Глад, Hungarian: Glad or Galád, Romanian: Glad, Serbian: Глад or Glad) was a duke of Bulgarian origin who, according to the 13th-century chronicle Gesta Hungarorum ("The Deeds of the Hungarians"), ruled in the territory of modern Banat (today mostly in Romania and Serbia) at the time of the Hungarian conquest of the Carpathian Basin around 896. His story was recorded exclusively by the Gesta Ungarorum, other primary sources make no mention of him.

The Gesta presents Ahtum – who, according to the so-called Long Life of St Gerard, ruled the Banat at the beginning of the 11th century – as a descendant from Glad’s lineage.

The author of the Gesta narrates that Glad arrived from Vidin (Bulgaria) to the Carpathian Basin, and occupied his domain with Cuman assistance.Romanian historians (e.g., Vlad Georgescu, Ioan Aurel Pop, Victor Spinei) suggest that the Cumani is a name which the chronicler probably used in lieu of Pechenegs because the Cumans only reached the Dnieper River in the middle of the 11th century, and approached the Danube Delta at some point between 1065 and 1078. On the other hand, in another episode of the Gesta, the Cumans are clearly distinguished from the Pechenegs.

Columbus Calvin "Duke" Pearson, Jr (Atlanta, Georgia, August 17, 1932 – Atlanta, August 4, 1980) was an American jazz pianist and composer. Allmusic notes him as being a "big part in shaping the Blue Note label's hard bop direction in the 1960s as a producer."

Duke was born Columbus Calvin Pearson, Jr. in Atlanta, Georgia to Columbus Calvin and Emily Pearson. The moniker "Duke" was given to him by his uncle, whom was a great admirer of Duke Ellington. Before he was six, his mother started giving him piano lessons, an instrument he studied until he was twelve.Then, he took an interest in brass instruments: mellophone, baritone horn and ultimately trumpet. He was so fond of the trumpet that through high school and college, he neglected the piano. He attended Clark College while also playing trumpet in groups in the Atlanta area. While in the Army, during his 1953-1954 draft, he continued to play trumpet and met, among the others, pianist Wynton Kelly. Pearson himself confessed in a 1959 interview that he was "so spoiled by Kelly's good piano", that he decided to switch to piano again. Also, it seems that dental issues forced him to give up brass instruments. He continued to perform with different ensembles in Georgia and Florida, including with Tab Smith and Little Willie John, before he moved to New York City in January 1959.

Edward Kennedy "Duke" Ellington (April 29, 1899 – May 24, 1974) was an American composer, pianist, and big-band leader. Ellington wrote over 1,000 compositions. In the opinion of Bob Blumenthal of The Boston Globe "In the century since his birth, there has been no greater composer, American or otherwise, than Edward Kennedy Ellington." A major figure in the history of jazz, Ellington's music stretched into various other genres, including blues, gospel, film scores, popular, and classical. His career spanned more than 50 years and included leading his orchestra, composing an inexhaustible songbook, scoring for movies, composing stage musicals, and world tours. Several of his instrumental works were adapted into songs that became standards. Due to his inventive use of the orchestra, or big band, and thanks to his eloquence and extraordinary charisma, he is generally considered to have elevated the perception of jazz to an art form on a par with other traditional genres of music. His reputation increased after his death and the Pulitzer Prize Board bestowed on him a special posthumous honor in 1999.