Monastery of Stoudios built
401 CE.
Shown on the map at 40.996°, 28.929°.
The Monastery of Stoudios, more fully Monastery of Saint John the Forerunner "at Stoudios" (Ancient Greek: Μονή του Αγίου Ιωάννη του Προδρόμου εν τοις Στουδίου, romanized: Monē tou Hagiou Iōannē tou Prodromou en tois Stoudiou), often shortened to Stoudios, Studion or Stoudion (Latin: Studium), was a Greek Orthodox monastery in Constantinople (modern-day Istanbul), the capital of the Byzantine Empire. The residents of the monastery were referred to as Stoudites or Studites. Although the monastery has been derelict for half a millennium, the laws and customs of the Stoudion were taken as models by the monks of Mount Athos and of many other monasteries of the Orthodox world; even today they have influence. The ruins of the monastery are situated not far from the Propontis (Sea of Marmara) in the section of Istanbul called Psamathia, today's Koca Mustafa Paşa. It was founded in 462 by the consul Flavius Studius, a Roman patrician who had settled in Constantinople, and was consecrated to Saint John the Baptist. Its first monks came from the monastery of the Acoemetae.
Text from the Wikipedia article Monastery of Stoudios, licensed CC BY-SA 4.0.