Question: What was the purpose of the code name "Overlord"?
About the article "Invasion of Normandy", section "Codenames".

Candidate passages:
"Mass Effect 2: Overlord" is a soundtrack album of "Mass Effect 2", containing music from the game's downloadable content pack "Overlord".
It was composed by Christopher Lennertz.
The soundtrack was released on December 14, 2010. 
In the feudal system, the title overlord refers to a particularly powerful lord, who has power over many people and/or power over other lords.
Overlord may also refer to:  Operation Overlord, codename for the invasion of Normandy by Allied forces during World War II  Mount Overlord, an extinct volcano in Antarctica  Overlord meme, an Internet meme relating mock submission  Ariakon Overlord, a paintball pistol  Overlord system, popular name for structure of British government 1951-3  The HalloWeekends Overlord, the commander of the Screamsters during HalloWeekends at Cedar Point amusement park in Sandusky, Ohio, United States  
Overlord is the code name of Mikhail Derenko.
He was first released as an action figure in 1990, packaged with the "Dictator" attack tank/hovercraft.
He is suspected of being a former Crimson Guard member.
Regardless, he actually managed to take control of Cobra for some time.
He advocated 'traditional Cobra values' but this was just to mask his own personal grab for power.
Overlord appeared in the Devil's Due G.I.
Joe series.
He is responsible for the death of Chuckles, murdering him on the beach of Cobra Island in issue #25.
Moments later, Skidmark and Duke move in to arrest Overlord.
A helicopter falls on Skidmark, killing him.
He later goes to work for the Jugglers.
He is sent to Duke's secret base in Iceland.
There he mortally wounds Scanner, and locks Duke, Scarlett, and Snake-Eyes in a vault.
Scanner uses the last of his strength to activate the base's self-destruct, killing himself and Overlord.
Overlord appeared as a boss in the 1991 "G.I.
Joe" video game for the Nintendo Entertainment System. 
The Jester is a brown minion and entertainer in the manner of a Medieval jester.
His sole purpose is to chat and praise the Overlord calling him under different titles as the Overlord completes certain tasks, such as "Enemy of Mankind" if the Overlord has killed a large amount of humans.
In the game's starting tutorial the Jester acts as a training target for the Overlord to learn how to use power and commands.
The Overlord can also kick the Jester to the floor with the sound of a cow bell each time, which the Jester will take and continue to praise the Overlord regardless.
At the end of game the Jester is seen performing a ritual leading into the events in the game's expansion "Raising Hell".
he is no longer in the tower and is later found in the domain of the lord of the Abyss.
Upon the Overlord's victory, the Abyss Lord tears down the room with himself and the Jester jumps onto the remaining Abyss gate before it is destroyed, saluting the Overlord as he goes.
A new Jester returns in Overlord II, his name being revealed as Quaver.
His role in the game is more or less the same as the old one in the first game, giving the overlord titles based on his latest victories.
The only changes made to the character in this game is his glass eye, having an Irish accent, markings across his skin and that he now sings poems in the Overlord's name (albeit bad ones), although the fate of the old jester has never been reveled.
In Overlord: Dark Legend, it was revealed that the Jester's hat and staff used to belong to a halfling jester named Jinks.
When Jinks became sick of all the bullying he got, he led the halflings against Gromgard.
But when Jinks was killed, the minion who would become the Jester found his hat and staff and took them as his own. 
In 1997, a new public library built in Winnipeg was named for him, after a vote was held to choose the name of the new library.
Leo Mol donated a miniature of his statue of Stephenson to the library.
On 24 July 1999, The Princess Royal unveiled, in Stephenson's hometown of Winnipeg, Manitoba, near the Provincial Legislature on York Street, Leo Mol's life-sized bronze statue of Stephenson in military aviator uniform.
The monument is dedicated to Stephenson's memory and achievements.
On 15 November 2009, Water Avenue was renamed William Stephenson Way in Winnipeg.
Whitby, Ontario, has a street named for Stephenson, which connects with streets named Intrepid and Overlord.
In 2004 Sir William Stephenson Public School was opened in WhitbyIn Oshawa, Ontario, Branch 637 of the Royal Canadian Legion is named for Stephenson.
Located in southern Oshawa, Ontario, is a park named Intrepid Park, after Stephenson's code name.
This park is located in the vicinity of what was formerly Camp X.