Before the Portuguese arrival in India in 1498, it provided "East Syrian" bishops to the Saint Thomas Christians.

Heliodorus of Bet Zabdai (died 344), Syrian bishop and martyr.

This caused problems for the young congregation, as both Latin and Syrian bishops claimed authority over them.

Subsequently, however, Gregorios and the other Syrian bishops died and were not replaced, leaving no further internal challengers to Dionysius.

A new Syrian Catholic diocese was established for Hasakah in 1957, and the town has been the seat of a Syrian Catholic bishop since 1959.

He has also a number of other books that were lost on the biographies of Western and Eastern Syrian bishops and on the interpretation of dreams.

Mar Abraham was the last Syrian bishop sent by East Syrian Catholicos to his Malabar church.

He was the oldest Syrian Roman Catholic bishop.

It is a matter of ongoing dispute between different churches in Kerala whether the Syrian bishops had any administrative responsibility or jurisdiction over the Nazrani Christians.

Although this action did not have the support of all the Syrian bishops, Damian had enough support to convene a meeting and choose a replacement.