Ipomoni of Loutraki
The holy and right believing Empress Helen Dragas Palaiologos, also known by her monastic name of Ipomoni, was the daughter of the emperor of the Slavs Constantine Dragasis and the wife of emperor Manuel II Palaiologos of Constantinople. Her name Ipomoni translates in English as Patience. She had six children. Her feast day is celebrated on March 13. Additionally, her memory is celebrated on May 29.
As empress, St. Ipomoni was noted for her pious works. She was pious and honored God and related with people in a godly manner. The philosopher Georgios Plethon writes that as an empress she was well known for her wisdom and justice.
Her husband (as a former emperor) became a monk with the name Mathieu. After his death she became a nun at the Monastery of Kira–Martha, taking the name Ipomoni (also Hipomoni). Although she was the former empress, she helped with all the jobs in the monastery along with the other nuns. She helped to establish a home for old people, with the name "The Hope of the Despaired". The home was located at the Monastery of St. John of the Stone where the relics of St. Patapius of Thebes are also kept.
An early siege of Constantinople occurred when St. Ipomoni and her husband were exiled from 1390 to 1392. She died on March 13, 1450, three years before Constantinople fell to the Ottoman Turks. Her son, emperor Constantine XI Palaiologos, died in the final charge  during the fall of Constantinople on May 29, 1453, while many other Christians were slaughtered by the Ottoman Turk forces of Sultan Mehmet II throughout the city as well as inside the Church of Hagia Sophia.
St. Ipomoni was buried in the Monastery of the Pantocratoras in Constantinople, where were her husband and three of their children (of which two were monks as well) were also buried.
After the conquest of Constantinople by the Turks in 1453, Angelis Notaras, a nephew of St. Ipomoni, transferred to Geraneia mountain (at the city Loutraki, near Athens) the relics of St. Patapius of Thebes into a cage. The cave was a place where hermit monks lived since the eleventh century. Also, in that cage is a Byzantine icon of Ss. Patapios and Ipomoni as well as the skull of St. Ipomoni. In 1952, Father Nektarios Marmarinos established the Monastery of St Patapios (Loutraki, Greece) where they still keep the holly skull of St. Ipomoni.
In addition to celebrating her memory on March 13, the day she fell asleep, St. Ipomoni is also celbrated on May 29, the day that Constantinople fell to the Ottomans and on which her son Constantine XI Palaiologos died.
- O Μέγας Συναξαριστής της Ορθοδόξου εκκλησίας (μ. Βίκτωρος Ματθαίου), τρίτη έκδοση, Μονή Μεταμόρφωσης Σωτήρος, Αθήνα, 1968.
- Τσολακίδης Χρήστος, Αγιολόγιο της Ορθοδοξίας, Αθήνα, Ελλάδα, έκδοση 2001.
- Πρωτοπρεσβύτερος Σωτήριος Μακρυστάθης. ‘Η Αγία Υπομονή: Ιστορία και ασματική ακολουθία της’. Αθήνα, 1993.
- Δρ Χαράλαμπος Μπούσιας, Kανών Παρακλητικός και Χαιρετιστήριοι Οίκοι εις την Οσία Μητέρα Ημών Υπομονή, έκδοση Ιεράς Μονής Αγίου Παταπίου, Λουτράκι, Ελλάδα, έκδοση 2007.
- Dr Haralambos Bousias, Saint Patapios and his miracles, nunnery of Saint Patapios, Loutraki, Greece, edition 2004.
- Information about St Hipomoni from the Church of Sparta
- Some say on the altar table of Hagia Sophia