There is a reference to Balthazar in Zoasteran literature at about the right time.
The Anglicans are really coming apart.
On his way to China, Marco Polo saw what was decribed to him as the grave of the three Magi the district of Saveh, in Tehran, Iran. The "Magi" were a priestly tribe in Persia, now Iran.
The details, while fragmentary, add up.