Having long served the late monk Blasios, Arsenios asked Theophylaktos, protos of Mount Athos, the hegoumenoi (of the gathering at Karyai) and Nikephoros, hegoumenos of Xerokastron, to be granted ownership of the field of Neaki(t)ou. He was granted control of Neaki(t)ou and recognized as hegoumenos of Hagios Antonios (Neakitou), in full ownership of the monastery and its properties, in exchange for 50 gold coins to be paid to Nikephoros of Xerokastron, on condition that Nikephoros' name be commemorated in the monastery. Nikephoros, having acceded to the request of Arsenios and been paid by him following according to the agreement, should not in the future challenge it, thus relinquishing all rights to the monastery of Neakitou. The emperor Konstantinos IX issued a letter over the cession of Neaki(t)ou by Nikephoros to Arsenios, which was read before the agreement between them was ratified. Nikephoros and Theophylaktos the protos asked Athanasios, monk of kyr Sisoe, to draft a document setting out the terms of the agreement. This document was signed by around fifteen persons, several using a cross verified by another's signature