Wikipedia
Ahatallah
Ahatallah (1590 – c. 1655) was a Syrian bishop chiefly known for his trip to India in 1652, on which he claimed to be the designated "Patriarch of the Whole of India and of China". Apparently, he had previously claimed to be the rightful Patriarch of Antioch ; though these claims appear to be exaggerated, he was evidently at least a bishop. His mysterious appearance in, and disappearance from, Portuguese India caused a great uproar there, and resulted directly in a revolt by the Saint Thomas Christians against Portuguese rule and the establishment of an independent Malankara Church.