His Holiness Pope John IV (in Latin Ioannes Quartus) is the Pope number 72 of the Catholic Church.
Severino was born in Roma, in the current country of Italy.
The Holy Father John IV initiated his pontificate in the year 640. He succeeded Pope Severinus. His papacy lasted for 0 years, ending during the year 640. He was succeeded by Theodore I, who would become the following bishop of Rome.