Jacobus de Voragine
The legend is recent and based on references by 3rd century writer Hippolytus of Rome in "On Apostles", mentioning Saint Andrew's voyage to Scythia and on works by several authors which also mention the voyage, such as: Eusebius in the Chronicles of Eusebius, Origen in the third book of his Commentaries on the Genesis (254 C.E.), Usaard in his Martyrdom written between 845-865, and Jacobus de Voragine in the "Golden Legend" (c. 1260). Scythia generally refers to a land in what is now Romania (Scythia Minor), Ukraine and southern Russia.