Pope Gregory IV

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Gregory IV
Birth name	???
Papacy began	September 20, 827
Papacy ended	January 11, 844
Predecessor	Valentine
Successor	Sergius II
Born	??? ???
Died	January 11, 844 ???
Other popes named Gregory

Gregory IV, pope (September 20, 827-January 11, 844), was chosen to succeed Valentine in December 827, on which occasion he recognized the supremacy of the Frankish emperor Louis the Pious in the most unequivocal manner.

Papal dependence on the Holy Roman Emperor loosened through the quarrels of Louis I the Pious and his sons, the future Lothair I, Pepin and Louis the German. On the sons' rebellion against their father, Gregory supported Lothair, hoping his intervention would promote peace, but in practice this action annoyed the Frankish bishops. Gregory's response was to insist upon the primacy of St Peter's successor, the papacy being superior to the Emperor.

The two armies, of Louis and his sons, met at Rotfeld, near Colmar, in the summer of 833. The sons persuaded Gregory to go to Louis' camp to negotiate, but he then found he had been duped by Lothair. Louis was deserted by his supporters and was forced to surrender unconditionally, and was deposed and humiliated. This sequence of events is known as the Campus Mendacii or "field of lies." Louis was subsequently restored, and after his death Gregory made unsuccessful attempts to mediate in the conflict that ensued between the brothers.

Gregory contributed to the architectural development of Rome (he rebuilt the Basilica di San Marco) and promoted the celebration of the feast of All Saints.

[edit] References

• Partially from the 9th edition (1880) of an unnamed encyclopedia

[edit] External Links

• Opera Omnia by Migne Patrologia Latina with analytical indexes

Roman Catholic Church titles
Preceded by Valentine	Pope 827–844	Succeeded by Sergius II

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