Gregory of Sinai, or in Serbian and Bulgarian Grigorije Sinaita (c. 1260s – 27 November 1346), was a Greek Christian monk and writer from Smyrna.
[1] Born in Smyrna, he was captured by Seljuk Turks as a young man, and eventually ransomed to Cyprus, whence he became a monk at Saint Catherine's Monastery in the Sinai Peninsula.
Later, he moved to Crete, where he learned the practices of hesychasm from a monk named Arsenios.
At Mount Athos, he was a monk at the Skete of Magoula near Philotheou Monastery.
He went on to found a monastery near Paroria, located in the Strandzha Mountains of southeast Bulgaria.