Question:  Which game, Löwenherz or Sentinels of the Multiverse, was created first?

full_context: Document 1: Barbarossa (board game): Barbarossa is a plasticine-shaping German-style board game for 3 to 6 players, designed by Klaus Teuber in and published in 1988 by Kosmos in German and by Rio Grande Games in English. "Barbarossa" won the 1988 Spiel des Jahres award.
Document 2: ReCharge Collectible Card Game: ReCharge Collectible Card Game is a collectible card game (CCG) based on Marvel Superheroes and produced by Marvel Entertainment in 2001. The game is modeled after Wizards of the Coast's "X-Men Trading Card Game". It was subsumed by UpperDeck's Vs. System, which is still the torch-bearer as the main Marvel CCG.
Document 3: Sentinels of the Multiverse: Sentinels of the Multiverse is a designer card game published by Greater Than Games and released at Gen Con 2011. It is a cooperative game in which players control a team of comic book-style heroes battling a villain. Each player controls one or more heroes, while a villain and environment deck each run themselves. A given game includes 3 to 5 heroes, 1 villain and 1 environment, which can be mixed and matched to create a number of different scenarios. The core game comes with 10 heroes, 4 villains, and 4 environments.
Document 4: HeroClix: HeroClix is a collectible miniatures game that uses the Clix system that centers on the world of superhero comic books, especially the Marvel and DC Comics universes. Players construct teams of comic book heroes, villains, or characters from various video games series such as Street Fighter, Gears of War, and Halo and engage in a turn-by-turn battle on grid maps based on various storyline locations. The game was originally designed and produced by WizKids, but was discontinued in November 2008 when WizKids owner Topps shut down their HeroClix line. In September 2009, collectible toy producer National Entertainment Collectibles Association (NECA) purchased some of the WizKids' intellectual property from Topps, including the HeroClix rights and then soon after began to produce and sell new HeroClix series.
Document 5: Elder Sign (card game): Elder Sign is a cooperative card and dice game, based on the Cthulhu Mythos of horror writer H.P. Lovecraft and Chaosium's Call of Cthulhu roleplaying game. It is published by Fantasy Flight Games, which also produces the Cthulhu Mythos games "Arkham Horror", "", "Mansions of Madness", and "Eldritch Horror".
Document 6: Alhambra (board game): Alhambra (German: Der Palast von Alhambra , literally "The Palace of the Alhambra") is a 2003 tile-based German-style board game designed by Dirk Henn. It was originally published in Germany by Queen Games in a language-interdependent version; an English-specific version was released in North America by the now-defunct Überplay. The game is an Arabian-themed update, set during the construction of the Alhambra palace in 14th century Granada, of the 1998 stock trading board game "Stimmt So!", which in turn was an update of the 1992 mafia influence board game "Al Capone"; the original version was subsequently released as "".
Document 7: Entdecker: Entdecker (German: "Discoverer") is a German-style board game designed by Klaus Teuber and published in 1996 by Goldsieber in German. Although the game won 2nd prize in the Deutscher Spiele Preis, many gamers were disappointed with the game after the success of Teuber's previous game, "The Settlers of Catan". An updated version, "Die Neuen Entdecker", was published in 2001 by Kosmos; this version was published in English by Mayfair Games under the title "Entdecker - Exploring New Horizons". This version of the game won the Essen Feather for that year.
Document 8: Kingdoms (board game): Kingdoms is a German-style board game for 2-4 players designed by Reiner Knizia and released in 2002 by Fantasy Flight. The game is based on Knizia's original German game "Auf Heller und Pfennig", but has been given a Medieval Fantasy theme.
Document 9: Pandemic (board game): Pandemic is a cooperative board game designed by Matt Leacock and published by Z-Man Games in 2007. "Pandemic" is based on the premise that four diseases have broken out in the world, each threatening to wipe out a region. The game accommodates 2 to 4 players, each playing one of five possible specialists: dispatcher, medic, scientist, researcher, or operations expert. The game is unlike most board games in that the gameplay is cooperative, rather than competitive. Through the combined effort of all the players, the goal is to discover all four cures before any of several game-losing conditions are reached.
Document 10: Marvel Superstars: Marvel Superstars is a collectible card game published by Upper Deck that released in North America in March 2010. The cards and game play are inspired by films based on Marvel Comics characters. It is the first collectible card game to use characters from Marvel films produced by different studios. The card art features scenes from the films.
Document 11: Catan Dice Game: Catan Dice Game is a German-style board game, developed by Klaus Teuber and published in 2007 by Catan GmbH and its licensors, Kosmos in Germany and Mayfair Games in English-speaking countries. It is a dice game re-imagining of Teuber's most notable title, "Settlers of Catan". "Catan Dice Game" can be played by any number of players, but is ideally suited for up to four. A variation, known as "Catan Dice Game Plus", is freely available from the "Catan" website, whose gameplay is closer to its "Settlers" origins.
Document 12: Löwenherz: Löwenherz (German for "Lionheart") is a German-style board game designed by Klaus Teuber and published in 1997 by Goldsieber in German and by Rio Grande Games in English. A revised edition, titled Löwenherz: Der König kehrt zurück in German and Domaine in English, was released in 2003 by Kosmos in German and Mayfair Games in English.
Document 13: Sentinels of the Multiverse: The Video Game: Sentinels of the Multiverse: The Video Game is a 2014 video game developed and published by Handelabra Games. It is an adaptation of the board game of the same name. The game was released for iOS and Android on October 15, 2014 and for Steam on December 22, 2014.
Document 14: Carcassonne (board game): Carcassonne is a tile-based German-style board game for two to five players, designed by Klaus-Jürgen Wrede and published in 2000 by Hans im Glück in German and by Rio Grande Games (until 2012) and Z-Man Games (currently) in English. It received the Spiel des Jahres and the Deutscher Spiele Preis awards in 2001.
Document 15: Marvel Super Heroes: The Heroic Role-Playing Game: Marvel Super Heroes: The Heroic Role-Playing Game is a role-playing game supplement published by TSR in 1984 for the "Marvel Super Heroes" role-playing game, and was the debut boxed set for the game.
ground_truth: Löwenherz