The monk Gregorios, the secretary of the Monastery, was also an important presence. A descendant of the well-known, influential Mavrokordatos family, the monk was a friend of Gregory VI, with whom he corresponded. Their correspondence is preserved today in the archives of the Monastery.
Prior to 1827, the well-known scholar and Hieromonk Prokopios Dendrinos resided at the Monastery for a short time. He wrote or issued many books on theological subjects, and was the first teacher at the seminary which operated on Poros by order of Ioannis Capodistrias, the first Governor of the independent Greek state.
Finally, Nikiforos Kalogeras, who later became the Archbishop of Patra and Ileas and a professor at the Theological School of the University of Athens, was tonsured as a monk at the Monastery. He dedicated sacred vestments to the Monastery.