Gandzasar monastery (Armenian: Գանձասարի վանք) is a 13th century Armenian monastery situated in the Mardakert region of Nagorno-Karabakh, near the village of Vank. "Gandzasar" means treasure mountain or hilltop treasure in Armenian. The monastery holds relics believed to belong to St Zechariah, father of John the Baptist. Gandzasar was the residence of an Armenian catholicos from about 1400 to 1816, and is now the seat of the Archbishop of Artsakh.