[1] It is situated in the Xilokeriza area, east of Mount Pentelicus.
An older, male monastery existed at the same site, dating back to the 10th century, when many hermitages were also established on what was then known as the "mountain of the pure."
The current monastery celebrates three main feast days: January 3rd, marking the discovery of the relics of Saint Ephraim, March 25th for the Annunciation, and May 5th, commemorating the martyrdom of Saint Ephraim.
In 1945, the monastery was reconstructed by Abbess Makaria Desypri, who restored it under its original name, "Nativity of the Theotokos."
In 1975, a ministerial decision restored its name to "Annunciation of the Theotokos," which, according to some sources, was revealed to her through divine intervention.