John XXIII

(Baldassare Cossa well, born. Ca 1360/1370, d ied. December 22, 1419) - Antipope obediencji pizańskiej during the great Western Schism. He was born about 1360/1370 [1] as one of four children of Giovanni Cossy, Neapolitan nobleman, Signora island of Procida, and Ciccioli Barile. From the mother was a distant relative of Pope Boniface IX. He grew up in Bologna, at the University obtained a doctorate in law shortly before the 1389 He also studied theology in Rome [2]. Before he began his career cleric, was a soldier.