Love's a Lottery and a Woman the Prize
He introduces himself thusly (from EEBO):
Doctor: Gentlemen, I find you don't know me– 'Tis very strange ye shou'd not have heard of the Never born Doctor– Nay, 'tis very true, I assure ye; for I was dissected from my Mother's Womb, and commenced Doctor before I came into the World– My Art and Experience, since that, has stretch'd my Fame throughout the wide Universe, especially in China, where I perform'd a very strange and wonderful Operation indeed– Which was this, a certain Emperour that was newly dead when I came there– What d'ye call him? Let me see– Pugh, I can't think of his Name now– He that I did...
Clitander: Well, Sir, what of him?
Doctor: Why I took his Head that had been sever'd from his Body, and buryed a whole Fortnight, and set it on his Shoulders again, and made him as brisk and lively, as e're I saw him in all my life–
And yet to think that I should n't remember his Name–
Oh, I have it now–
Prester John. Ay, ay, a Pox on't, Prester John, 'twas he i'faith– I might have had his Daughter, if I had not been a Foold, and have liv'd like a Prince all the Days of my Life– Nay, perhaps I might have inherited the Crown after his Death– But a pox on't, her Lips were too thick for me– And that I shouldn't think of Prester John!
Omnes: Most Prodigious!
Doctor: Ay, ay, Gentleman, I have done Cures beyond Sea that won't be believ'd in England.