Complex sentence: This letter, which has survived in the Vatican archives, distorted the truth: the rebels claimed that the Nestorian patriarch'Shemon Bar Mama' had died in 1551 and that Sulaqa had been legitimately elected after his death.
Split into simpler sentences: This letter, which has survived in the Vatican archives, distorted the truth. The rebels claimed that the Nestorian patriarch'Shemon Bar Mama' had died in 1551 and that Sulaqa had been legitimately elected after his death.