How many Pope's have resigned?

Answer 1

Records of the earliest centuries of the Church are virtually non existent so in many cases it is impossible to determine if a pope resigned. Some sources say there have been 4 popes who have been documented as resigning. Other sources say there have been 10 resignation. For a list of papal resignation and possible resignations click here.

Answer 2

We had a Pope, Pope Gregory XII, who resigned in 1417 to end the Great Schism. In 1294 a hermit-monk named Pietro Angelerio was elected, he was only pope under the name Celestine V for five months, when he resigned. He was a favorite of Pope Benedict's who prayed at his tomb often, and left his pallium there on Celestine's tomb right after his election to the chair of Peter.

Answer 3

Two, the last one was over 500 years ago.