There has only been one pope by that name - Pope Benedict XVI.
There has been only one pope with the baptismal name of Joseph and that was Pope Benedict XVI. However, there has never been a Catholic pope who took the regnal name of Joseph. There has been a Coptic (Orthodox) pope who took the name of Joseph I.
Only Pope Benedict XVI was named Joseph. However, Pope Pius XII and Pope John XXIII had the name Giuseppe (Italian for Joseph) as a part of their name.
There has only been one pope by that name - Pope Benedict XVI.
There have been no popes named Kenneth.
There have been 6 popes named Sixtus.
There have been 13 popes named Leo.
There have been 13 popes named Innocent.
There have been no popes named Jude.
There have been 16 popes named Gregory. Gregory XVI reigned from 1831 to 1846.
There have been 8 popes called Urban.
There have been 6 popes who chose the name of Paul.
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There have been 23 popes named John, Pope John XXIII was the last. He died in 1963.
There has never been a Pope Augustus.