Mar Shemʿon VI (also written Shimun VI) was Patriarch of the Church of the East from 1504 until his death on 5 August 1538.[1][2] Shemon is credited with revising the East Syriac Rite, replacing commemorations of traditional saints and martyrs with new ones, especially for those who had founded monasteries.[3] Following his death, he was succeeded as Patriarch by his brother Shemon VII Ishoyahb, who had been natar kursya (designated successor) throughout his reign; since the reign of Shemon IV the role of Patriarch had been passed hereditarily.[4] Shemon VI was buried alongside other Patriarchs of his era at Rabban Hormizd Monastery near Mosul, his residence while he had been Patriarch; his epitaph, recorded by Vosté, was inscribed by a priest named Israel.[5]