Roman control of Britain finally ended in the early part of the 5th century ; the date usually given as marking the end of Roman Britain is 410, when the Emperor Honorius sent letters to the British, urging them to look to their own defence.

In 410, the Eastern Roman Empire sent six Legions ( 6, 000 men ; due to changes in tactics, legions of this period were about 1000 soldiers, down from the 6000-soldier legions of the Republic and early Empire periods ) to aid Honorius.

In 421, Honorius recognized him as co-emperor Constantius III ; however, when the announcement of his elevation was sent to Constantinople, Theodosius refused to recognise him.

To this end, Honorius " sent his deacon Gaios " to a synod in Cyprus in 634 hosted by archbishop Arkadios II with additional representatives from Patriarch Sergius I of Constantinople.

At Lothair ’ s request, Cardinal Gherardo and two bishops then sent word to Rome to obtain Honorius ’ confirmation of the election, which he granted.

Honorius also sent Cardinal John of Crema to Pisa to hold another synod that excommunicated Archbishop Anselm of Milan, who had crowned Conrad king.

Roger in the meantime had rapidly overrun the duchy of Apulia and had sent Honorius lavish gifts, asking the Pope to recognise him as the new duke and promising to hand over Troia and Montefusco in exchange.

Trying to salvage something of the situation, Honorius sent his trusted advisor Cardinal Aymeric together with Cencio II Frangipane to negotiate with Roger secretly.

Honorius, on hearing news of the disorders at Cluny, sent a legate to investigate with orders to excommunicate and denounce Pons and order him to present himself before Honorius.

Still hoping to be promoted to the office of Legate of Spain, Diego sent envoys to Rome, carrying with them 300 gold Almoravid coins, two hundred and twenty for Honorius and another eighty for the Curia.

Honorius IV appointed the envoy Archbishop of Mainz, fixed a date for the coronation, and sent Cardinal John of Tusculum to Germany to assist Rudolf I's cause.

The Mongol ruler Arghun sent an embassy and a letter to Pope Honorius IV in 1285, a Latin translation of which is preserved in the Vatican.

Boniface's partisans did not let the matter rest there and sent a petition to Emperor Honorius alleging irregularities in the election of Eulalius.

* The future Archbishops of Canterbury, Mellitus, Justus, and Honorius, and the future Archbishop of York Paulinus, are sent to England by Pope Gregory I to aid Augustine in his missionary work.

* Honorius agrees that sons of prominent families at court in Ravenna be sent beyond the Danube as hostages ; in return, later he calls up ten thousand Hun mercenaries.

* Winter – Olympiodorus, historical writer, is sent on an embassy by Honorius and sails in stormy weather around Greece up the Black Sea to meet the Huns who are located on the middle Danube ( modern Bulgaria ).

In Narbonne they are executed and their heads are sent to Honorius ' court at Ravenna.

He obtained a promise from the new pope, Honorius III, that during his lifetime no resident legate should be again sent to England, and won other concessions from the same pontiff favorable to the English Church and exalting the see of Canterbury.

Jovinus ' and Sebastianus ' heads were afterwards sent to Honorius and mounted on the walls of Ravenna ( before being passed on to Carthage, where they were put on permanent display with the heads of four other usurpers ).

Meanwhile, Honorius III sent Pelagius of Albano to lead the crusade in 1219.

Nevertheless, someone was eventually appointed and installed as the new bishop, since Pope Honorius III sent a letter directly to an unnamed Bishop of Finland in 1221.

In 625, a letter from Pope Honorius I to Metropolitan Hypatios of Nikopolis was sent with reference to the difficult travel conditions, preventing the bishop from reaching Rome.

A Roman by birth, Honorius may have been one of those chosen by Pope Gregory the Great for the Gregorian mission to England, although it seems more likely that he was a member of the second party of missionaries, sent in 601.

Independently, the cardinal-nephew of Pope Adrian IV, Cardinal Boso intended to extend the Liber Pontificalis from where it left off with Stephen V, although his work was only published posthumously as the Gesta Romanorum Pontificum alongside the Liber Censuum of Pope Honorius III.

Cardinal Aymeric and the Frangipani family began planning their next moves, and Honorius was taken to the San Gregorio Magno al Celio monastery, which was located in the territory controlled by the Frangipani.

Nevertheless, Cardinal Aymeric ’ s plans had not yet reached fruition when Honorius died on the evening of 13 February 1130.

The way in which Honorius was elected meant that he became a creature, not only of Cardinal Aymeric, but also of the Frangipani family.

When Martin IV died on 28 March 1285, at Perugia, Cardinal Savelli was unanimously elected Pope on 20 May and took the name of Honorius IV.

In 1130, as Pope Honorius II lay dying, the cardinals decided to entrust the election to a commission of eight men led by papal chancellor Haimeric, who had his candidate Cardinal Gregory Papareschi hastily elected as Pope Innocent II.

The statutes given in 1220 by Cardinal Conrad, legate of Honorius III, which were completed in 1240 by Pierre de Conques, placed this school under the direction of the Bishop of Maguelonne.

The archbishop's next opponent was the papal legate of the new Pope Honorius II, Cardinal John of Crema, who arrived in England in 1125.

In 1130, Pope Honorius II lay dying and the cardinals decided that they would entrust the election to a commission of eight men, led by papal chancellor Haimeric, who had his candidate Cardinal Gregory Papareschi hastily elected as Pope Innocent II.

The statutes given in 1220 by Cardinal Conrad von Urach, legate of Pope Honorius III, which were confirmed and extended in 1240, placed this school under the direction of the Bishop of Maguelonne, but the school enjoyed a great deal of de facto autonomy.

Thus, he recalled the Jesuit Cardinal Bellarmin's sentences concerning the authority of religious councils concerning matters of dogma versus de facto issues ; he also recalled the debate between St Athanasius and St Basil concerning the interpretation of Dionysus of Alexandria, who was accused by Basil of Arianism and therefore convoked before the Pope Dionysius in 262 ; or the various contradictory papal interpretations given to the Scythian monks ; as well as another debate concerning Pope Honorius I, who had been later anathematized by the Third Council of Constantinople, although Cardinal Bellarmin defended Honorius ' orthodoxy, claiming that the condemned propositions were not to be found in Honorius.

Bishop Christian asked the new Pope Honorius III for the consent to start another Crusade, however a first campaign in 1217 proved a failure and even the joint efforts by Duke Konrad with the Polish High Duke Leszek I the White and Duke Henry I the Bearded of Silesia in 122 / 23 only led to the reconquest of Chełmno Land but did not stop the Prussian invasions.

The death of Emperor Henry V on 23 May 1125 put an end to these squabbles, but soon Honorius was involved in a new power struggle in the Holy Roman Empire.

One of the key ecclesiastical advisors of Lothair III was Saint Norbert of Xanten, who travelled to Rome in early 1126 to seek the formal sanction from Honorius to establish a new monastic order, the Premonstratensian Order ( also known as the Norbertines ), which Honorius agreed to do.

Honorius in the meantime entered into an alliance with the new Prince of Capua, Robert II.

Honorius supported the claims of William of Malines, the new Archbishop of Tyre who claimed jurisdiction over some of the sees that had traditionally belonged to Bernard of Valence, the Patriarch of Antioch.

Far-reaching prospects seemed to open before him when Honorius crowned Peter II of Courtenay as Latin Emperor of Constantinople in April of 1217, but the new Emperor was captured on his eastward journey and died in confinement.

The two largest religious orders received many new privileges from Honorius IV, documented in his Regesta.

After the new synodal letter of the African council of 1 May 418 to the pope, and after the steps taken by the emperor Honorius against the Pelagians, Zosimus issued his Tractoria, in which Pelagianism and its authors were finally condemned.

The Council's letter of confirmation clearly states: " We anathematize the inventors of the new error, that is, Theodore, Sergius, ... and also Honorius, who did not attempt to sanctify this Apostolic Church with the teaching of Apostolic tradition, but by profane treachery permitted its purity to be polluted.

At the same time a new general was found to support Honorius.

Under the latter's reign, Galla Placidia was returned to Ravenna where, in 417, at the urging of Honorius, she remarried, her new husband being the implacable enemy of the Goths, Constantius.

Dominic returned to Rome a year later, and was finally granted written authority in December 1216 and January 1217 by the new pope, Honorius III for an order to be named " The Order of Preachers " (" Ordo Praedicatorum ", or " O. P .," popularly known as the Dominican Order ).

Emperor Theodosius II ( 408-50 ) made it the capital of a new province, formed out of Bithynia and Paphlagonia, and called by him Honorias in honour of his younger son Honorius.

" The Eastern Emperor Theodosius II hesitated to nominate a new emperor of the West ; Stewart Oost points out that with Honorius ' death, " technically and legally he became sole ruler of the whole Roman Empire ".