Genealogy
Before his ascension to the Chrysanthemum Throne, his personal name (his imina) was Takaharu-shinnō (尊治親王).
He was the second son of the Daikakuji-tō emperor, Emperor Go-Uda. His mother was Fujiwara no Chūshi/Tadako (藤原忠子), daughter of Fujiwara no Tadatsugu (Itsutsuji Tadatsugu) (藤原忠継/五辻忠継). She became Nyoin called Dantenmon-in (談天門院).
Emperor Go-Daigo's ideal was the Engi era (901–923) during the reign of Emperor Daigo, a period of direct imperial rule. An emperor's posthumous name was normally chosen after his death, but Emperor Go-Daigo chose his personally during his lifetime, to share it with Emperor Daigo.
Read more about this topic: Emperor Go-Daigo