Question: What is the real name of the first Elder of the Universe to appear in the Marvel Comic books?

Context articles: Elders of the Universe
Graphic Imaging Technology
Collector (comics)
Ultimate Requiem
List of comic books on CD/DVD
Mythos (Marvel Comics)
Marvel Cinematic Universe
Sentry (Curtis Elkins)
Die-Cut (comics)
Reaper (Marvel Comics)

The Elders of the Universe are a fictional group of supervillains appearing in American comic books published by Marvel Comics.
 The Collector was the first Elder to appear, and featured in "Avengers" #28 (May 1966), but the idea that he was a member of a group known as the Elders was not introduced until "Avengers" #174 (August 1978).
 The character was created by Roy Thomas and Sal Buscema.
Graphic Imaging Technology Inc., or GIT, is a digital archiving company located in Brooklyn, NY.
 The company is best known for its releases of scanned comic book collections on CDs and DVDs. For a time, GIT held the license to release collections of scanned Marvel comic books, which included some of their classic characters such as Spider-Man, Captain America, The Hulk, Iron Man, and the Fantastic Four.
 They held the license with Marvel until 2007, when Marvel chose to instead release digital comics through their Marvel Digital Comics Unlimited website.
 As a result, the company was no longer allowed to produce collections of Marvel books, and could not sell their back stock of previous releases.
 In addition to Marvel comics, GIT has also released collections for Archie Comics, "Mad" magazine, and "National Lampoon".
The Collector (Taneleer Tivan) is a fictional character appearing in American comic books published by Marvel Comics.
 Debuting in the Silver Age of Comic Books, the character has been featured in nearly five decades of Marvel continuity.
Ultimate Requiem is a series of comic books published by Marvel Comics.
 It takes place in the Ultimate Universe following the events of "Ultimatum".
 The X-Men and Fantastic Four stories were published as one shots, while the Spider-Man story was published as a two-issue limited series.
 The books serve as an epilogue to each of the Ultimate Universe's three core titles, which were all canceled following Ultimatum.
 They are the last Ultimate Marvel comic books to be published before the imprint was relaunched as "Ultimate Comics".
This list will include all comic books that have been or will be released on CD-ROM or DVD-ROM, as well as what books are included in each release.
 The majority of these releases have been produced or co-produced by Graphic Imaging Technology (GIT), with most of those releases containing Marvel comic books.
 In addition to these "authorized" editions there are also limitless "unauthorized" publishers offering these titles and many more.
 Most comic books have already been converted to digital format.
Mythos is a six-issue series of one-shot Marvel comic books written by Paul Jenkins and fully painted by Paolo Rivera, each issue is based on the origin story of a particular character or group within Marvel's collective universe.
The Marvel Cinematic Universe (MCU) is an American media franchise and shared universe that is centered on a series of superhero films, independently produced by Marvel Studios and based on characters that appear in American comic books published by Marvel Comics.
 The franchise has expanded to include comic books, short films, television series, and digital series.
 The shared universe, much like the original Marvel Universe in comic books, was established by crossing over common plot elements, settings, cast, and characters.
 Phil Coulson, portrayed by Clark Gregg, is an original character to the MCU and the only character to appear across all the different media of the MCU.
Sentry (real name Curtis Elkins) is a member of The Jury in the fictional Marvel comic universe.
 His rank is commanding officer.
 His ethnicity is African-American.
Die-Cut (real name: Czorn Yson) is a fictional character appearing in American comic books published by Marvel Comics.
 The character appears in comic books published by the Marvel UK imprint.
 He first appeared in "Death's Head II & the Origin of Die-Cut" #1 (1993).
 Die-Cut then co-starred in another miniseries, "Die-Cut vs G-Force", before receiving his own "Die-Cut" limited series in November 1993.
Reaper is the name of several fictional characters appearing in American comic books published by Marvel Comics.
 The character known most notably as the Reaper whose real name is Pantu Hurageb, a mutant in the "X-Force" comic book series.
 He has been a villain in the main Marvel Universe but a hero in the Ultraverse.