Annales Omnium Temporum
In relating his history there, Rombulo claims that Prester John is associated with the rulers of China. Brewer (p. 284) mentions this narrative in his table of Prester John texts.
Of the text, Verena Krebs writes (p. 113):
While Pietro Ranzano had interrogated the Ethoiopian ambassador Pietro Rombulo about Ethiopia in 1450 and included much factual information on Ethiopia in his Annales omnium temporum, he also could not resist the urge to embellish the account with descriptions of immense wealth, precious stones, gold, many tributary kings, exotic partially fictitious animals, and an all-powerful Christian army of a massive size, clearly drawing on contemporary views of Prester John.