Gregory IV
Birth name	???
Papacy began	827
Papacy ended	844
Predecessor	Valentinus
Successor	Sergius II
Born	??? ???
Died	844 ???

Gregory IV, pope (827-844), was chosen to succeed Valentinus in December 827, on which occasion he recognized the supremacy of the Frankish emperor Louis the Pious in the most unequivocal manner. Vatican coat of arms This image depicts a seal, an emblem, a coat of arms or a crest. ... Events Succession of Pope Valentine, then Pope Gregory IV. Arabs invade Sicily. ... Events Succession of Pope Sergius II (844 - 847). ... Valentinus, or Valentine, pope for thirty or forty days in 827, was a Roman by birth, and, according to the Liber Pontificalis, was first made a deacon by Paschal I (817-824). ... Sergius II, was Pope from 844-847. ... Events Succession of Pope Sergius II (844 - 847). ... The Pope (from Greek: pappas, father; from Latin: papa, Papa, father) is the head of the Catholic Church. ... Events Succession of Pope Valentine, then Pope Gregory IV. Arabs invade Sicily. ... Events Succession of Pope Sergius II (844 - 847). ... Valentinus, or Valentine, pope for thirty or forty days in 827, was a Roman by birth, and, according to the Liber Pontificalis, was first made a deacon by Paschal I (817-824). ... For other uses, see Franks (disambiguation). ... Louis the Pious, contemporary depiction from 826 as a miles Christi (soldier of Christ), with a poem of Rabanus Maurus overlaid. ...

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 Holy Roman Emperor was, with some variation, the ruler of the Holy Roman Empire, the predecessor of modern Germany, during its existence from the 10th century until its collapse in 1806. ... Louis the Pious, contemporary depiction from 826 as a miles Christi (soldier of Christ), with a poem of Rabanus Maurus overlaid. ... Lothair I Lothair I (German: Lothar, French: Lothaire) (795 – 2 March 855), king of Italy (818 – 855) and Holy Roman Emperor (840 – 855), was the eldest son of the emperor Louis the Pious and his wife Ermengarde of Hesbaye, daughter of Ingerman, duke of Hesbaye. ... Pippin, often also spelt Pepin, was the name of several important figures in the Carolingian family that ruled the Frankish Empire in what is now France and the western parts of Germany in the Middle Ages: Pippin of Landen Pippin of Herstal Pippin III (father of Charlemagne) Pippin the Hunchback... Louis the German (also known as Louis II or Louis the Bavarian) (804 - August 28, 876), the third son of the emperor Louis the Pious and his first wife, Ermengarde of Hesbaye, was the king of Bavaria from 817, when his father partitioned the empire, and king of East Francia... According to tradition, Peter was crucified upside-down, as shown in this painting by Caravaggio. ...

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. Location within France coat of arms of Colmar Colmar is a town and commune in the Haut-Rhin département of Alsace, France. ... Events End of the reign of caliph Al-Mamun Nimmyo succeeds Junna as emperor of Japan Creation of Great Moravia Births Deaths October 10 - al-Mamun, Abbasid caliph of Baghdad Categories: 833 ...

He contributed to the architectural development of Rome (he rebuilt the Basilica di San Marco) and promoted the celebration of the feast of All Saints. Madama Lucrezia is one of the talking statues of Rome, and is located next to the basilica entrance. ... All Saints in Poland The festival of All Saints, also sometimes known as All Hallows, or Hallowmas (hallow meaning holy, and mas meaning Mass), is a feast celebrated in their honour. ...

References

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