The Jugdral Series is an unofficial term used to describe the the games of the Fire Emblem series featuring the continent of Jugdral, namely Fire Emblem: Genealogy of the Holy War and Fire Emblem: Thracia 776, both for the Super Famicom.
The story of Thracia 776 occurs as an "interquel", or "midquel", taking place within the bounds of Genealogy of the Holy War.
A large number of fans, particularly among Japanese, consider this series to be the pinnacle of Fire Emblem, as it featured far more complex story lines than previous titles set in Archanea and introduced game play features and enhancements that would go on to become cornerstones of the franchise, such as Skills and a transparent and player-manipulable Support/Affection system, with attendant character depth and development. Nintendo's own "History of Fire Emblem" page on the English website for Fire Emblem: The Blazing Blade called Genealogy of the Holy War "the most successful game in the series", presumably meaning it was, at the time, the highest-selling or most profitable of the titles (although some sources have Fire Emblem: Mystery of the Emblem selling more copies by volume).
Connection to the Archanea SeriesEdit
In various documents and interviews, it's stated that the Jugdral Series occurs about a thousand years before the Archanea series and on a separate continent, however the location of that continent on the world of Archanea and Valentia is unknown. The specifics of the connection between Archanea, Valentia, and Jugdral still remain to be seen.
In Fire Emblem Awakening, which takes place three thousand years after the events of the Jugdral Series, some characters make references to Jugdral, further hinting the setting's existence on the same world.