 Pope Leo IX

Pope Leo IX (21 June 1002 – 19 April 1054), born Bruno of Egisheim-Dagsburg, was the bishop of Rome and ruler of the Papal States from 12 February 1049 to his death in 1054.Leo IX is widely considered the most historically significant German pope of the Middle Ages; he was instrumental in the precipitation of the Great Schism of 1054, considered the turning point in which the Catholic and Orthodox Churches formally separated.