Under one of these emperors, Romanos IV Diogenes ( 1067 – 1071 ), Alexios served with distinction against the Seljuq Turks.

Under Michael VII Doukas Parapinakes ( 1071 – 1078 ) and Nikephoros III Botaneiates ( 1078 – 1081 ), he was also employed, along with his elder brother Isaac, against rebels in Asia Minor, Thrace, and in Epirus.

* February 10 – William IX, Duke of Aquitaine and poet ( b. 1071 )

Baldwin VI, Count of Flanders ( reigned 1067 – 1070 ) was effectively succeeded by his brother Robert I ( reigned 1071 – 1093 ), rather than his own sons.

* Eupraxia of Kiev ( 1071 – 20 July 1109 ).

* Eupraxia of Kiev, regnal name Adelheid ( 1071 – 1109 )

The earliest troubadour whose work survives is Guilhèm de Peitieus, better known as Duke William IX of Aquitaine ( 1071 – 1126 ).

Courtly love found its expression in the lyric poems written by troubadours, such as William IX, Duke of Aquitaine ( 1071 – 1126 ), one of the first troubadour poets.

* Jenkins, Romilly, Byzantium: The Imperial Centuries ( A. D. 610 – 1071 ), Weidenfeld and Nicoloson, 1966.

* Romanos IV Diogenes ( died 1072 ), Byzantine emperor 1068 – 1071, son of Constantine Diogenes

It covers the reigns of fourteen emperors and empresses, beginning with the almost 50-year-long reign of Basil II, the " Bulgar-Slayer " ( 976-1025 ), and ending some time during the reign of Michael VII Doukas ( 1071 – 1078 ).

The epitome of Dio was prepared by order of Michael Parapinaces ( 1071 – 1078 ), but is unfortunately incomplete.

Roger I ( – June 22, 1101 ), called Bosso and the Great Count, was the Norman Count of Sicily from 1071 to 1101.

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In 1071, Bari was captured by Robert Guiscard, following a three-year siege.

The underpaid army tended to mutiny, and the Byzantines lost Bari, their last possession in Italy, to the Normans of Robert Guiscard in 1071.

Bari was reduced ( April 1071 ), and the Byzantine forces were finally ousted from southern Italy.

By 1071, Robert, together with his brother Roger, had taken over the last Byzantine stronghold in Italy, Bari.

Bari was captured by the Normans in April 1071, and the Byzantines finally ousted from southern Italy.

Since the last remainder is zero, the algorithm ends with 21 as the greatest common divisor of 1071 and 462.

In 1071 William defeated the last rebellion of the north.

For the years 1067 – 1071 Orderic follows the last portion of the Gesta Guillemi, and is therefore of the first importance.

This was an army built virtually from scratch after the permanent loss of Byzantium's traditional main recruiting ground of Anatolia to the Turks following the Battle of Manzikert in 1071, and the destruction of the last regiments of the old army in the wars against the Normans in the early 1080s.

Alp Arslan led Seljuq Turks to victory against the Byzantine Empire | Byzantines in 1071.

* 1071: Defeat of the Byzantine Empire at the Battle of Manzikert by the Seljuk army of Alp Arslan, ending three centuries of a Byzantine military and economic Golden Age.

Romanos ( or Romanus ) IV Diogenes ( Greek: Ρωμανός Δ ΄ Διογένης, Rōmanos IV Diogenēs ) was a member of the Byzantine military aristocracy who, after his marriage to the widowed empress Eudokia Makrembolitissa was crowned Byzantine emperor and reigned from 1068 to 1071.

During his reign he was determined to halt the decline of the Byzantine military and stop Turkish incursions into the Byzantine Empire, but in 1071 he was captured and his army routed at the Battle of Manzikert.

Michael VII Doukas or Ducas ( Greek: Μιχαήλ Ζ ΄ Δούκας, Mikhaēl VII Doukas ), nicknamed Parapinakēs ( Παραπινάκης ), was Byzantine emperor from 1071 to 1078.

The Seljuq Turks had taken over almost all of Anatolia after the Byzantine defeat at the Battle of Manzikert in 1071, with the result that on the eve of the Council of Clermont, the territory controlled by the Byzantine Empire had been reduced by more than half.

Following the defeat at Manzikert in 1071, Muslims had taken half of the Byzantine Empire's territory, and such strategically and religiously important cities as Antioch and Nicaea had only fallen to Muslims in the decade before the Council of Piacenza.

Starting in 1071, when Ladislaus ' elder brother, Duke Géza, refused to hand over the king's share of the treasure from the Byzantine Empire acquired after the occupation of Belgrade, the relationship between King Salamon and the three brothers deteriorated.

The Seljuq Turks pushed beyond Iran into Anatolia, winning a victory over the Byzantine Empire in the Battle of Manzikert ( 1071 ), and setting up a sultanate independent of the Iranian branch of the dynasty.

That southern Italy was reconquered and ruled by a Byzantine governor from about 970 to 1071 explains the relatively large number of small and rustic Middle Byzantine-style churches found there, including the Cattolica in Stilo and S. Marco in Rossano.

This therefore was the island most used as a place of exile in Byzantine times ( the most notable exile being the former emperor Romanos IV Diogenes, after the Battle of Manzikert, 1071 ).

Thus Constantine weakened the Byzantine forces, which in turn led to their cataclysmic defeat at the battle of Manzikert in 1071.

In 1071 the Byzantine army was defeated by the Muslim Seljuk Turks at the Battle of Manzikert resulting in the loss of most of Asia Minor.

The title of " Immortals " was again revived twice under the Byzantine Empire, first as an elite heavy cavalry unit under John I Tzimiskes ( r. 969 – 976 ) and then by Nikephoritzes, the chief minister of Emperor Michael VII ( r. 1071 – 1081 ), as the core of a new central field army of the following the disastrous defeat of Manzikert by the Seljuk Turks in 1071.

In 1071, King Solomon and the dukes led a campaign against the Byzantine Empire and laid siege to the fortress of Belgrade.

The country was invaded by the Seljuq Turks, which were part of the same wave which had overrun Anatolia, defeating the Byzantine Empire and taking captive the emperor Romanos IV Diogenes at the battle of Manzikert in 1071.

The Byzantine Empire had lost much of its territory in Asia Minor to the Seljuk Turks in the aftermath of the Battle of Manzikert in 1071, and Alexius hoped western knights could help him restore it.

Upon the death of Edwin in 1071, the manor and the rest of Mercia passed into the possession of the Crown, then ruled by William the Conqueror, resulting in Sutton Chase becoming a Royal Forest.

In 1071, after the decisive battle at Manzikert, the Seljuk Turks took possession of Theodosiopolis.