Pope Gregory XII was born in 1326.
Pope Gregory XII died on 1417-10-18.
The last pope to resign (before Benedict XVI) was Gregory XII in 1415.
Pope Gregory XII filled the chair of Peter in 1411.
Pope Gregory XV was born on January 9, 1554.
Pope John XII was born in 937.
Pope Benedict XII was born in 128#.
Tthe last Pope that retired was Pope Gregory Xll in 1415.
Pope Leo XII was born on August 22, 1760.
Pope Innocent XII was born on March 13, 1615.
Pope Pius XII was born on March 2, 1876.
Pope Clement XII was born on April 7, 1652.
Pope Benedict XVI resigned officially on February 28, 2013. The most previous pope to resign was Gregory XII who resigned on July 4, 1415.