His Holiness Pope John XXI (in Latin Ioannes Vicesimus Primus) is the Pope number 187 of the Catholic Church.
Pedro was born in Saboya, in the current country of Italy.
The Holy Father John XXI initiated his pontificate in the year 1276. He succeeded Pope Adrian V. His papacy lasted for 0 years, ending during the year 1276. He was succeeded by Nicholas III, who would become the following bishop of Rome.