Arnulf was granted the Duchy of Carinthia, a Frankish vassal state and successor of the ancient Principality of Carantania, by his father Carloman, after Carloman had become reconciled with his own father Louis the German and was created King of Bavaria.

Arnulf spent his childhood on the Mosaburch or Mosapurc, which is widely believed to be Moosburg in Carinthia, only a few miles away from one of the Imperial residences, the Carolingian Kaiserpfalz at Karnburg, which before as Krnski grad had been the residence of the Carantanian princes.

Later, after he had been crowned King of East Francia, Arnulf turned his old territory of Carinthia into the March of Carinthia, a part of the Duchy of Bavaria.

Arnulf, having distinguished himself in the war against the Slavs was elected by the nobles of the realm ( only the eastern realm, though Charles had ruled the whole of the Frankish lands ) and assumed his title of King of East Francia.

As early as 880, Arnulf had designs on Great Moravia, and had the Frankish bishop Wiching of Nitra interfere with the missionary activities of Methodius, with the aim of preventing any potential for creating a unified Moravian nation.

However, in his attempts to conquer Moravia, in 899 Arnulf invited across the Magyars who had settled in Pannonia, and with their help he imposed a measure of control on Moravia.

Arnulf then proceeded to exile to Bavaria two leading senators, Constantine and Stephen, who had helped Ageltrude seize the city.

Leaving one of his vassals, Farold, to hold Rome, Arnulf marched on Spoleto, where Ageltrude had fled to join Lambert.

That same year, Formosus died, leaving Lambert once again in power, and both he and Berengar killed any officials who had been put in place by Arnulf, as Ratold also fled from Milan to Bavaria.

Arnulf had the nobility also recognize the rights of his illegitimate sons Zwentibold and Ratold as his successors.

To withstand Saxon overlordship Wenceslaus ' father Vratislaus had forged an alliance with the Bavarian duke Arnulf the Bad, then a fierce opponent of King Henry ; however, it became worthless when Arnulf and Henry reconciled at Regensburg in 921.

Early in 929 the joint forces of Duke Arnulf of Bavaria and King Henry I the Fowler reached Prague in a sudden attack, which forced Wenceslaus to resume the payment of a tribute which had been first imposed by the East Frankish king Arnulf of Carinthia in 895.

Henry had been forced to pay a huge tribute to the Magyars in 926 and he therefore needed the Bohemian tribute which Wenceslaus probably refused to pay any longer after the reconciliation between Arnulf and Henry.

The Popponids had been favoured by Charles the Fat, but Arnulf reversed this policy in favour of the rival family of the Conradines from the Lahngau in Rhenish Franconia.

She was the widow of Arnulf II of Flanders, with whom she had children, the oldest of whom was of age to assume the offices of count of Flanders.

Odo married Théodrate of Troyes and had two known sons, Arnulf ( born probably about 885 ) and Guy ( born probably about 888 ), neither of whom lived past the age of fifteen.

Under the marriage agreement, if Baldwin and Adelaide had no children, the heir to the kingdom would be Roger II of Sicily, Adelaide's son by her first husband Roger I. Technically the marriage to Adelaide was bigamous because Arda was still alive in a monastery in Jerusalem, and it would later cause many problems both for Baldwin and Patriarch Arnulf, who had sanctioned it.

When in November 887 Arnulf of Carinthia called a council of the East Frankish nobility to depose Charles the Fat, who had succeeded to all the kingdoms of the Empire by 884, the Lotharingians were one of those who joined him.

in January 1002 she accompanied Arnulf back to Italy, only to discover when the ship reached Bari that Otto III had died, forcing her to return home.

While there he received news that an ambitious nephew, Arnulf of Carinthia, had fomented a general rebellion and was marching into Germany with an army of Bavarians and Slavs.

In 1094 king William II of England rewarded Arnulf with the formal lordship of Pembroke ; some historians say that he was in fact created Earl of Pembroke.

Bavaria, however, was ruled more or less by Arnulf.

Under Emperor Arnulf of Carinthia, Carantania, now ruled by a mixed Bavarian-Slav nobility, shortly emerged as a regional power, but was destroyed by the Hungarian invasions in the late 9th century.

Christian Settipani proved through contemporary documents that Arnulf of Metz and his ancestors were Frankish in the male line, since they were ruled by the Frankish Law.

* Arnulf I of Bavaria ( died 937 ) ( ruled 907 – 927 )

* Arnulf I of Flanders ( ruled 918 – 965 )

Chlothachar later made his son Dagobert I king of Austrasia and he ruled with the help of his adviser Arnulf.

Arnulf of Flanders ( c. 890 – March 28, 965 ), called the Great, was the third Count of Flanders, who ruled the County of Flanders, an area that is now northwestern Belgium and southwestern Holland.

: opponent of Berengar, ruled most of Italy but was deposed by Arnulf.

Baldwin III The Young of Flanders ( 940 – January 1, 962 ) was Count of Flanders, who briefly ruled the County of Flanders ( an area that is now northwestern Belgium and southwestern Holland ), together with his father Arnulf I.

In 1040 comes mention of a " county of Haspinga in the pagus Haspengouw ", but this time mentioning the brother of Giselbert, Arnulf, leading some to think that Giselbert had died, and his brother had taken over, while others think that the two brothers ruled together during their lifetimes, and some believe they ruled two different parts of Haspengouw.

Arnulf was, according to most sources, the illegitimate son of Carloman, King of Bavaria, and his concubine Liutswind, perhaps of Carantanian origin, and possibly the sister of Ernst, Count of the Bavarian Nordgau Margraviate in the area of the Upper Palatinate, or perhaps the burgrave of Passau, as some sources say.

After Carloman was incapacitated by a stroke in 879, Louis the Younger inherited Bavaria, Charles the Fat was given the Kingdom of Italy and Arnulf was confirmed in Carinthia by an agreement with Carloman.

On his way down, Arnulf suffered a stroke, forcing him to call off his campaign and return to Bavaria.

Duke Burchard II of Swabia soon swore fealty to the new King, but Duke Arnulf of Bavaria did not submit until Henry defeated him in two campaigns in 921.

In 929, with the help of Arnulf of Bavaria, Henry entered Bohemia and forced Duke Wenceslaus I to resume the yearly payment of the tribute to the king.

* 937 – Arnulf, Duke of Bavaria

* Henry the Fowler invades Bavaria and obtains fealty from Arnulf the Bad.

* July 14 – Duke Arnulf I of Bavaria

The following year his nephew Arnulf of Carinthia, the illegitimate son of King Carloman of Bavaria, raised the standard of rebellion.

The Empire of the Carolingians was divided: Arnulf maintained Carinthia, Bavaria, Lorraine and modern Germany ; Count Odo of Paris was elected King of Western Francia ( France ), Ranulf II became King of Aquitaine, Italy went to Count Berengar of Friuli, Upper Burgundy to Rudolph I, and Lower Burgundy to Louis the Blind, the son of Boso of Arles, King of Lower Burgundy.

On their return, however, Duke Arnulf the Bad of Bavaria inflicted a reverse upon them on the Rott, but in 910 they, in their turn, defeated Louis the Child's army near Augsburg.

Cunigunda, widow of Liutpold and mother of Duke Arnulf of Bavaria, gave him two children: Cunigunda and Herman, both born in 913.

Leopold Maximilian Joseph Maria Arnulf, Prinz von Bayern ( 9 February 1846 – 28 September 1930 ) was born in Munich, the son of Prince Regent Luitpold of Bavaria ( 1821 – 1912 ) and his wife Archduchess Augusta of Austria ( 1825 – 1864 ).

Burchard I, Duke of Swabia quickly swore allegiance as well, but Duke Arnulf of Bavaria did not submit to Henry until the latter advanced with an army into Bavaria in 921.

Before 862, the seven Magyar tribes, living in the area they called Etelköz, seceded from the Khazars ; afterwards, they were exacting tribute from the neighbouring Slavic tribes and they fought occasionally as mercenaries on behalf of King Carloman of Bavaria, King Arnulf I of Germany and King Svatopluk I of Great Moravia.