Pope Stephen IX was the Bishop of Rome and ruler of the Papal States from 3 August 1057 to his death on 29 March 1058. He was a member of the Ardenne-Verdun family, who ruled the Duchy of Lorraine, and started his ecclesiastical career as a canon in Liège. He was invited to Rome by Pope Leo IX, who made him chancellor in 1051 and one of three legates to Constantinople in 1054. The failure of their negotiations with Patriarch Michael I Cerularius of Constantinople and Archbishop Leo of Ohrid led to the permanent East–West Schism. He continued as chancellor to the next pope, Victor II, and was elected abbot of the Benedictine monastery of Montecassino.
Pope Stephen IX was crowned as pope.
On August 3, in the year 1057, Pope Stephen IX was crowned as pope. This event is recorded as a Selected Events event in the history of August 3, one of 437 recorded events on this date across all of history.
Key Facts
- This event took place on August 3, 1057 (AD era).
- It is categorised as a Selected Events event in recorded history.
- Referenced in 1 Wikipedia article.
- Wikipedia source last updated on 1 June 2026.
On This Date in History 437
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