Would his motto be Exodus 3:14?
My choice, too. My husband is Patrick & I’m Patricia, so why not?
Slight tweak: I yam that I yam.
You’ll go far Cardinal Q.Q..
Pope Judas II 
Pope Infidel, the first married Protestant pope.
Either Pope Elvis or Pope Ourri.
And she had the heart and soul of a concrete elephant.
Pope Isaac Edward (two points for recognising the reference)
Bernadette.
In the short lived series Crusade, a sequel to Babylon 5, there was a mention in one episode of Pope Bernadette II.
She was mentioned a couple of times in the main series, too.
Edgar Allan Pope. Or maybe Sanctimonious Twat.
Moshe. My actual Hebrew name.
Pope Brian. Not Bwian, Brian. A Roman.
Sotomonte I
As queen she won her nation’s competition against France and Spain for European supremacy. Compared to her father, who was a concrete komodo dragon (elephants are very sensitive and loving), she was practically a saint.
How about “Jesus II”?
Technically Jesus was never a Pope.
Pope Andreas II.
Just “Pope.” Not Pope Pope or anything, only Pope. If Bono, Prince, and Madonna can pull it off, then I certainly can.
Love that!