Among other interesting features it contains information about the Nestorian Church of China in the 13th century - Yabhalaha was a native of Peking - an account of a journey through Central Asia, and a description of a visit to Europe by Rabban Sauma, the friend of the catholicus."
Kavadh), against the heresy of Acacius and Barsuma (Bar-sauma), the friends of Nestorius.
RABBAN BAR SAUMA (fl.
On this embassy Bar Sauma started in 1287, with Arghun's letters to the Byzantine emperor, the pope and the kings of France and England.
The papacy being then vacant, a definite reply to his proposals was postponed, and Bar Sauma passed on to Paris, where he had audience of the king of France (Philip the Fair).