Righteous
Righteous Gregory of Vatopedi (identity unconfirmed)
The entry "Gregory of Vatopedi" is not confirmed by any source as a distinct, independently venerated saint; several real historical figures named Gregory are connected to Vatopedi Monastery on Athos (the 14th-c. abbot-writer Gregory Kardamis, the precentor Gregory Domestikos, St. Gregory Palamas during his early monastic period), but none matches the title "Gregory of Vatopedi" as a distinct canonized saint.
A targeted check identified SEVERAL different historical figures named Gregory connected to Vatopedi Monastery on Athos, but none of them clearly corresponds to the entry "Gregory of Vatopedi" as a distinct canonized saint: (1) Gregory Kardamis — a real abbot of Vatopedi in the second half of the 14th century, author of five surviving letters, but no source attributes sainthood veneration to him; (2) Venerable Gregory Domestikos (the precentor) — the protagonist of the well-known legend of the Theotokos's appearance, thanking him for singing "It Is Truly Meet" and giving him a gold coin, but his relics and the established tradition are linked to the Great Lavra, not Vatopedi, and pravenc.ru's dedicated Vatopedi article does not mention him at all; (3) St. Gregory Palamas — began his monastic path near Vatopedi in 1317-1320 under the elder Nikodim, but is world-renowned and venerated under his own name, "Gregory Palamas" (feast Jun 14/27 and the 2nd Sunday of Great Lent), not as "Gregory of Vatopedi" — these entries should not be confused. Given the lack of a clear match, this entry is marked as an unconfirmed identity.