Four Horsemen of the Apocalypse

The Four Horsemen of the Apocalypse (フォー・ホースマ), also referred as the Knights of the Apocalypse (ナイツ・アヴ・ザ・アッパッカリップス) or the Knights of Revelation (ナイツ・アヴ・レヴァレイシャﾝ) were of an infamous, legendary group of Knight Magi who were considered to been the most powerful knights in Eurasia. It was said their magical power, and strength alone would bring about the Apocalypse, the war between the Horsemen that would've torn Earth Land apart. Highly capable knights, the four were high ranking officers in the Magi, however they'd be suspected to be the murders of the kingdom of Hyland's king, and the death of Arthur Britannia, the king of the kingdom of Eurodon whose death began the Eurodon Civil War.

According to the Magi Order, Eurasia's variant of the, it was said the Four Horsemen together had the power equal to virtually six of the Ten Wizard Saints, with the exclusion to the legendary Four Gods of Ishgar. Basically, the Four Horsemen is to the Magi Order the Eurasian variant of the Ten Wizard Saints.