From 1184 to 1186, the Hohenstaufen empire under Frederick I Barbarossa reached its peak in the Reichsfest ( imperial celebrations ) held at Mainz and the marriage of his son Henry in Milan to the Norman princess Constance of Sicily.

* 1186 – Henry VI, the son and heir of the Holy Roman Emperor Frederick I, marries Constance of Sicily.

The death of Henry's fourth son, Geoffrey II, Duke of Brittany in 1186 began a new round of disputes, as Henry insisted that he retain the guardianship of the duchy for his unborn grandson Arthur I, Duke of Brittany.

As a result, William married Ermengarde de Beaumont, a Great-granddaughter of King Henry I of England, at Woodstock Palace in 1186.

* 1186: On January 27, the future Emperor Henry VI marries Constance of Sicily, the heiress to the Sicilian throne.

In 1186, he engineered the marriage of his son Henry to Constance of Sicily, heiress to the Kingdom of Sicily, over the objections of Pope Urban III.

The castle was occupied by the English for twelve years, until 1186, when it was returned to William as the dowry of his English bride, Ermengarde de Beaumont, who had been chosen for him by King Henry.

* Geoffrey II, Duke of Brittany ( 1158 – 1186 ), Duke of Brittany, third surviving legitimate son of Henry II

In 1186, the younger Baldwin had married Marie of Champagne, daughter of Count Henry I of Champagne and Countess Marie of France.

He was appointed Dean of York by order of King Henry II about July 1186.

Nevertheless, in 1184 Constance was betrothed to Henry ( the future Emperor Henry VI ), and they were married two years later, on 27 January 1186.

Thus, Béla married Marguerite of France, the sister of King Philip II of France and widow of Henry the Young King, the eldest son of King Henry II of England in 1186.

King Henry later employed de Vere as an itinerant justice, then nominated him as Bishop of Hereford on 25 May 1186.

They were: Geoffrey Plantagenet ( 1158 – 1186 ), son of Henry II of England ; Ranulph de Blondeville, Earl of Chester ( c. 1172 – 1232 ), the marriage with whom Constance treated as null on the ground of consanguinity ; and Guy de Thouars ( d. 1213 ), who survived his wife for twelve years.

On January 27, 1186, Frederick's son Henry VI married Constance of Sicily in Milan as a sign that peace had really been established.

* Aaron of Lincoln ( 1125 – 1186 ), believed to be the wealthiest man of 12th century England, banker to Henry II of England

King Henry II of England ( visited 1186 )

** Henry I ( 1186 – 1241 ), also Count of Murach 1186 – 1238

In later times, Orderic Vitalis ( d. c. 1142 ) and Robert of Torigni ( d. 1186 ), extended the volumes to include history up until Henry I.

According to Hoveden, in May 1186 Henry ordered the king and magnates of Scotland to subdue Lochlann ; in response Lochlann " collected numerous horse and foot and obstructed the entrances to Galloway and its roads to what extent he could ".

The last event described in the last book ( Book 16 ) is King Canute VI of Denmark subduing Pomerania under Duke Bogislaw I, in 1186.

Isaac II Angelos strengthened his position as emperor with dynastic marriages in 1185 and 1186.

* Yuan Taizong, or Ögedei Khan ( 1186 – 1241 ; reigned 1229-1241 ), emperor of the Mongol Yuan Dynasty

William the Lion granted the charter to raise Dumfries to the rank of a Royal Burgh in 1186.

Dumfries has been a Royal Burgh since 1186, its charter being granted by King William the Lion in a move that ensured the loyalty of its citizens to the Monarch.

They were first mentioned in 1186 as being granted to the Cistercian abbey in Oliwa.

Friedrich Barbarossa granted extensive market rights to Locarno in 1164 and granted imperial immediacy in 1186.

In 1186, Guy and Sibylla granted Chastel Neuf and Toron, with other territory, to Joscelin.

Whilst the origins of Loudoun's name are up for debate, it is known that by 1186 the name was used to describe the surrounding area, as in this year a Royal Charter granted the Lands of Lowdun to James de Lambinus.

Covilhã was granted foral in 1186 by king Sancho I of Portugal, who also built the castle walls.

Guy went with Sibylla to Jerusalem for his stepson's funeral in 1186, along with an armed escort, with which he garrisoned the city.

In a letter from 1186, Pope Urban III refers to the city as Hafn, but this is probably just a shortened version of the full name.

Founded as a city in 1186 by King Alfonso VIII of Castile on the banks of the Jerte as a city-fortress, with the double purpose of colonizing and guarding the then south-western border of the Kingdom, it fell briefly to the Moors of Yaqub al-Mansur in 1196, being reconquered by the Christians the year after.

Isabella's mother Maria and the Ibelins ( now closely allied to Conrad ) argued that Isabella and Humphrey's marriage was illegal, as she had been underage at the time ; underlying this was the fact that Humphrey had betrayed his wife's cause in 1186.

* Archbishop William of Tyre, historian of the Crusades ( approximate date ; d. 1186 )

Rudolf Hiestand discovered that the date of William's death was 29 September, but the year was not recorded ; whatever the year, there was a new chancellor in May 1185 and a new archbishop of Tyre by 21 October 1186.

Berthold IV ( d. 1186 ), who followed his father Conrad, spent much of his time in Italy in the train of Emperor Frederick I Barbarossa ; his son and successor, Berthold V, showed his prowess by reducing the Burgundian nobles to order.

As Baldwin's health deteriorated, Guy was appointed regent of Jerusalem ; at Sibylla's succession to the throne in 1186 she gave the crown to Guy as her king-consort.

Guy of Lusignan became king of Jerusalem in 1186, in right of his wife Sibylla, after the death of Sibylla's son Baldwin V. The Kingdom of Jerusalem was at this time divided between the " court faction " of Guy, Sibylla, and relative newcomers to the kingdom such as Raynald of Châtillon, as well as Gerard of Ridefort and the Knights Templar ; and the " nobles ’ faction ", led by Raymond III of Tripoli, who had been regent for the child-king Baldwin V and had opposed the succession of Guy.

The later chapel had a barrel vault and an uncomplicated apse ; its design would have been considered outmoded by contemporary standards in France, but bears similarities to that built around 1186 at Margat.

Commercially, these were sold as Lisp Machines and branded as Xerox AI Workstations ; the same designs, but with different software, were also sold under different names ( e. g. when running the Viewpoint system, the 1186 Daybreak was sold as the Xerox 6085.

1245 ), betrothed to William of Valence, brother of Guy of Lusignan, in 1186, but married Otto von Henneberg, Count of Botenlauben by 1208 ; she was widowed by January 1247.

In the times of the Polish fragmentation upon the 1138 Testament of Bolesław III Krzywousty, Kujawy at first became part of the Duchy of Masovia under Bolesław IV the Curly and his son Leszek ; it was claimed by the Polish High Duke Casimir II the Just in 1186, contested by his elder brother Mieszko III the Old and his son Bolesław.

Conrad then married her himself on 24 November 1190, despite claims of bigamy ( his second wife was still alive in Constantinople, but she had probably divorced him ; his first wife had died before 1186 ).

Again occupied by the ' Greek ' Byzantines from 1018 to 1186, it enjoyed great prosperity ; a section of the population was Paulician or Manichaean, heresies from both Catholic and ( later ) Orthodox points of view.

Scarcely 50 years after its completion William de Vere, who occupied the see from 1186 to 1199, altered the east end by constructing a retro-choir or processional path and a Lady Chapel ; the latter was rebuilt not long afterwards — between the years 1226 and 1246, during the Early English style — with a crypt beneath.

He died c. 1186 ; he and his wife ( both apparently great benefactors to various religious institutes ) are buried in the church of Hunmanby.

* Saadia's Kitab al-Amanat wal-I ' tiḳadat, under the title Sefer ha-Emunot weha-De ' ot ( 1186 ; first ed.

The sarcophagi of Prince Vladimir and Princess Anna overlook the Martirievskaia Porch ; Archbishop Ilya ( also known as Ioann ) ( 1165 – 1186 ) is buried in the northwestern corner of the main body of the church, next to the Pretechenskaia Porch.

* Thomas of Ibelin ( 1186-1188 ; actually held by Balian of Ibelin, 1186 – 1193 )

Song Ci ( Chinese: 宋慈 ; Pinyin: Sòng Cí ) ( 1186 – 1249 ) was a forensic medical expert active during the Southern Song Dynasty who wrote a groundbreaking book titled Collected Cases of Injustice Rectified ( Xi Yuan Ji Lu ).

Count Engelbert II of Berg, also known as Saint Engelbert, Engelbert of Cologne, Engelbert I, Archbishop of Cologne or Engelbert I of Berg, Archbishop of Cologne ( 1185 or 1186, Schloss Burg – 7 November 1225, Gevelsberg ) was Archbishop of Cologne and a saint ; he was the victim of a notorious murder by a member of his own family.