He then followed the fortunes of his friend Elector Maurice of Saxony, deserted Charles, and joined the league which proposed to overthrow the Emperor by an alliance with King Henry II of France.

* 1111 – Henry V is crowned Holy Roman Emperor.

In 1054 King Edward sent Ealdred to Germany to obtain Emperor Henry III's help in returning Edward the Exile, son of Edmund Ironside, to England.

Although some sources state that Ealdred attended the coronation of Emperor Henry IV, this is not possible, as on the date that Henry was crowned, Ealdred was in England consecrating an abbot.

At Christmas 1196, Holy Roman Emperor Henry VI attempted to force Alexios III to pay him a tribute of 5, 000 pounds ( later negotiated down to 1, 600 pounds ) of gold or face invasion.

In February 1215, Andrew married Yolanda, the niece of Henry I, the Emperor of Constantinople.

When the Emperor Henry I died on 11 July 1216, Andrew was planning to acquire the imperial throne, but the barons of the Latin Empire proclaimed his father-in-law, Peter of Courtenay their emperor.

Among their children, four lived to maturity: Henry, born in 952 ; Bruno, born 953 ; Matilda, the first Princess-Abbess of Quedlinburg, born about 954 ; and Otto II, later Holy Roman Emperor, born 955.

In 1007, Holy Roman Emperor Henry II made Bamberg a family inheritance, the seat of a separate diocese.

He thus broke allegiance with Philip and assembled a broad coalition including Emperor Otto IV, King John I of England, Duke Henry I of Brabant, Count William I of Holland, Duke Theobald I of Lorraine, and Duke Henry III of Limburg.

Some notable collectors were Pope Boniface VIII, Emperor Maximilian of the Holy Roman Empire, Louis XIV of France, Ferdinand I, Henry IV of France and Elector Joachim II of Brandenburg, who started the Berlin Coin Cabinet ( German: Münzkabinett Berlin ).

In 1122, Henry V, Holy Roman Emperor entered into an agreement with Pope Calistus II known as the Concordat of Worms.

The Concordat of Worms, sometimes called the Pactum Calixtinum by papal historians, was an agreement between Pope Calixtus II and Holy Roman Emperor Henry V on September 23, 1122 near the city of Worms.

Following efforts by Lamberto Scannabecchi ( later Pope Honorius II ) and the Diet of Würzburg ( 1121 ) in 1122, Pope Calixtus II and Holy Roman Emperor Henry V entered into an agreement that effectively ended the Investiture Controversy.

Gregory VII appeared to have succeeded when the emperor Henry IV, Holy Roman Emperor was humiliated at Canossa in 1077.

Henry IV, Holy Roman Emperor was one of those monarchs who found himself excommunicated.

On Palm Sunday, 1084, Henry IV solemnly enthroned Clement at St. Peter ’ s Basilica and on Easter Day, Clement returned the favor and crowned Henry IV as Emperor of the Holy Roman Empire.

Henry V was crowned by Pope Paschal II as the legitimate Holy Roman Emperor.

The struggle over investiture between Pope Gregory VII and Henry IV, Holy Roman Emperor had dramatized the clash between church and state.

When, after the death of Emperor Otto I in 973, a struggle for the supremacy in Germany began, both Dobrawa's husband and brother Boleslav II the Pious, Duke of Bohemia, supported the same candidate for the German throne, Duke Henry II of Bavaria.

** Liber ad honorem Augusti by Peter of Eboli, narrative of the conquest of Sicily by Henry VI, Holy Roman Emperor ( Latin )

* 313 – Battle of Tzirallum: Emperor Licinius defeats Maximinus II and unifies the Eastern Roman Empire.

* 1806 – Francis II, the last Holy Roman Emperor, abdicates ending the Holy Roman Empire.

Constantine's son Constantius II, who had become Emperor of the eastern part of the Empire, actually encouraged the Arians and set out to reverse the Nicene creed.

In 355 Constantius became the sole Emperor and extended his pro-Arian policy toward the western provinces, frequently using force to push through his creed, even exiling Pope Liberius and installing Antipope Felix II.

* 1203 – Isaac II Angelos, restored Eastern Roman Emperor, declares his son Alexios IV Angelos co-emperor after pressure from the forces of the Fourth Crusade.

* 435 – Deposed Ecumenical Patriarch of Constantinople Nestorius, considered the originator of Nestorianism, is exiled by Roman Emperor Theodosius II to a monastery in Egypt.

Although the western Emperor Gratian held orthodox belief in the Nicene creed, the younger Valentinian II, who became his colleague in the Empire, adhered to the Arian creed.

* 1945 – Japan accepts the Allied terms of surrender in World War II and the Emperor records the Imperial Rescript on Surrender ( August 15 in Japan Standard Time ).

* 982 – Holy Roman Emperor Otto II is defeated by the Saracens in the battle of Capo Colonna, in Calabria

* 268, Battle of Lake Benacus — Romans under Emperor Claudius II defeat the Alemanni.

Alexander Alexandrovich Romanov was born on 10 March 1845 in Saint Petersburg, Russia, the second son of Emperor Alexander II of Russia and his wife Maria Alexandrovna ( Marie of Hesse ).

* Alexander II of Russia ( 1818 – 1881 ), Emperor of Russia

Alexios II Komnenos or Alexius II Comnenus () ( 10 September 1169 – 24 September 1183, Constantinople ), Byzantine emperor ( 1180 – 1183 ), was the son of Emperor Manuel I Komnenos and Maria, daughter of Raymond, prince of Antioch.

* 357 – Emperor Constantius II enters Rome for the first time to celebrate his victory over Magnus Magnentius.

On the way home, he negotiated with King Levon I of Armenia, the Emperor Theodore I Laskaris of Nicaea and Tsar Ivan Asen II of Bulgaria and arranged several marriage contracts between his children and the courts he visited.

Andrew's first mission to the East was when he was asked by the French king Louis IX to go and fetch the Crown of Thorns which had been sold to him by the Latin Emperor of Constantinople Baldwin II in 1238, who was anxious to obtain support for his tottering empire.

In 1180 the Emperor Manuel died and was succeeded by his ten year old son Alexios II, who was under the guardianship of his mother, Empress Maria.

A bust of Emperor Constantius II from Syria. Ammianus was born between 325 and 330 in the Greek-speaking East, possibly at Antioch on the Orontes.

* Alexius II of Trebizond, Emperor of Trebizond

Eudoxia gave to Arcadius four children: three daughters, Pulcheria, Arcadia and Marina, and one son, Theodosius, the future Emperor Theodosius II.

* 355 – Claudius Silvanus, accused of treason, proclaims himself Roman Emperor against Constantius II.

* 1804 – Francis II assumes the title of first Emperor of Austria.

Antipope Felix II was installed as Pope in 355 after the Emperor Constantius II banished the reigning Pope, Liberius, for refusing to subscribe the sentence of condemnation against Saint Athanasius.