Dorotheus
He was succeeded by Dorotheus, a well-tried man who had grown old in a good and active life. Not being able to stay in the monastery itself, as Elias had done, he shut himself up in an upper chamber and made a window looking on to the women’s monastery, which he used to shut and open. So he would sit continually at the window reminding them to keep the peace. And so he grew old up there in the upper chamber, without either the women going up to him or himself being able to come down to them. For there was no ladder fixed.
Source: Clarke, W. K. Lowther, trans. 1918. The Lausiac History of Palladius. London: Society for Promoting Christian Knowledge. Page 110.