The oldest historical proofs for the existence of the Monastery come from two documents from the Vatopedinos Monastery which are dated 998 and 1001, and are signed by the first owner, the Holy Xenofon, as ‘monk and Abbot of the Monastery of St Georgios’. The Holy Xenofon, who is mentioned also in the Life of St Athanasios the Athonite, was highly educated, which is evidenced by documents he both authored and wrote in his own hand, and his active participation in different issues involving the Athonite monasteries, as witnessed by his signature on relevant documents as late as 1017, the year the last one is dated to. The Monastery took its name from this holy monk, as is strongly supported by the monk Iakovos Neasketiotis in his 19th century work Αθωνιάς (‘Athos’).