Ambrosios Pleianthidis

Ambrosios Pleiathidis (, 1872–1922) also known as Ambrosios of Moschonisia was the Greek Orthodox metropolitan bishop of Moschonisia, in modern Turkey, from February to September 1922. He was executed by the Turkish Army at the end of the Greco-Turkish War (1919-1922).

He is commemorated by the Greek Orthodox Church as Hieromartyr and his feast day is celebrated on the Sunday before the Exaltation of the Holy Cross each year (September 7–13).

Life Ambrosios was born in Smyrna (modern İzmir), in the Aidin vilayet of the Ottoman Empire, in 1872. He graduated from the Evangelical School of his home town at 1893. After his graduation Ambrosios became an archdeacon in the nearby metropolis of Heliopolis and Thyateira, based in Aydın. He continued his studies and in 1895 he attended the Theolodigal Academy of Kiev and then he became a priest in the Greek community of Feodosiya in Crimea. In 1910 Ambrosios returned to Smyrna, where he preached in the local metropolis, under metropolitan Chrysostomos. Among these people was Ambrosios, who was buried alive after being tortured.