Pope Gregory XII
Pope Gregory XII (Latin: Gregorius XII; c. 1326 – 18 October 1417), born Angelo Corraro, Corario, or Correr, was Pope from 30 November 1406 to 4 July 1415 when he was forced to resign to end the Western Schism. He succeeded Pope Innocent VII and in turn was succeeded by Pope Martin V.
Life
Angelo Corraro was born in Venice of a noble family, about 1327, and was appointed Bishop of Castello in 1380, succeeding Bishop Nicolò Morosini.
On 1 December 1390 he was made Titular Patriarch of Constantinople. On 12 June 1405 he was created cardinal and the Cardinal-Priest of San Marco by Pope Innocent VII. He was Apostolic Administrator of Constantinople from 30 November 1406 to 23 October 1409.
Papal conclave
Gregory XII was chosen at Rome by a conclave consisting of only fifteen cardinals under the express condition that, should Antipope Benedict XIII (1394–1423), the rival papal claimant at Avignon, renounce all claim to the Papacy, he would also renounce his, so that a fresh election might be made and the Western Schism (1378–1417) ended. He became Supreme Pontiff on 30 November 1406, taking the name Gregory XII.