Well that depends on your definition of what a Pope is. If you mean the head of The Catholic Church that was since Saint Peter even though Protestants deny this, it was certainly not Constantine, nor influenced by Constantine, when the title of Pope first apears is less clear, some say it comes from the second century A.D. but the first contemporary source to use the title was of Pope Damascus I who lived after Constantine.
James was the first bishop of Jerusalem.
Francois de Laval didn't want to become a bishop. He wanted to become a priest. But then when he studied with the Jesuits, they nominated him to be first bishop. And then he was appointed by Pope Alexander VII and became first bishop of Quebec.
Bishop samuel ajayi crowther
The crucifixion of Jesus was about 300 years prior to Constantine.
1600-1750
There is no historical evidence to support the claim that Saint Brigid of Ireland became a bishop. In early sources, she is described as a powerful and influential abbess but not a bishop. The idea of her being a bishop is likely a later embellishment or misinterpretation.
Bishop Pompallier was the first bishop to arrive in New Zealand
John Carroll was the first Bishop of the United States.
John Carroll was the first bishop in the United States. He was the bishop of Baltimore.
the first female bishop is rowen atcensosn bob
St. Patrick was the first bishop of Ireland.
The first Catholic Bishop of Australia was John Bede Polding.