Yohannan I

Yohannan I bar Marta was patriarch of the Church of the East between 680 and 683.

Yohannan's patriarchate
The following account of Yohannan's patriarchate is given by Mari:

Yohannan, also known as Bar Marta, came from a noble family of al-Ahwaz, and was educated in the school of Jundishapur. He later became metropolitan of Jundishapur, and was shortly afterwards elected patriarch. He was consecrated in al-Madaïn in the usual way. His health was very poor, and he died after sitting for only two years and a few days. He was buried in Mattuth.

A few more details are supplied by Bar Hebraeus:

At this period the catholicus Giwargis died and was succeeded by Yohannan Bar Marta, in the second year of Yazid, son of Muawiya, the king of the Arabs who ruled in Palestine. Yohannan was already old and bowed down in years, and subject to infirmities. After he had fulfilled his office for two years, he died and was succeeded by Hnanishoʿ the Great.