Anthony of Siya
Anthony of Siya (Russian: Антоний Сийский, romanized: Antony Siysky; 1478–1556) was a Russian Orthodox monk who was proclaimed a saint after his death. He founded the Antonievo-Siysky Monastery on the Siya River, a tributary of the Northern Dvina, in modern Arkhangelsk Oblast, in the Russian North. He was the last significant monastic saint.