Patriarchal Monastery of the Holy Trinity, Orthodox monastery in Veliko Tarnovo, Bulgaria

The Patriarchal Monastery of the Holy Trinity stands on the right bank of the Yantra River at the foot of the Arbanasi cliffs, 6 km north of Veliko Tarnovo. Its church, built by Kolyu Ficheto in 1846–1847, has a cross-shaped plan with three domes and facades decorated with blind arches in red brick. A four-column exonarthex with an arcade stands on the west side, and the entrance is from the south.

The monastery was founded in 1070 when churchwarden Georgi Prilozhnik and his son Kalin established it during Byzantine rule over Bulgaria. These origins make it one of the oldest religious centers in the region.

The monastery served as a center for religious scholarship in the late 14th century and played an important role in preserving theological texts. Monks here created significant handwritten works that were shared across the region.

The monastery lies north of Veliko Tarnovo and is reachable via roads leading to nearby villages. Visitors should wear comfortable shoes, as the path to the monastery and within the grounds is hilly.

The church within the monastery contains an altar originating from the Roman ruins of Nicopolis ad Istrum. This altar was originally used in pagan sacrifice rituals before being incorporated into the monastery's sacred space.