After a successful campaign Manuel I and Andronikos returned together to Constantinople ( 1168 ); but a year later, Andronikos refused to take the oath of allegiance to the future king Béla III of Hungary, whom Manuel desired to become his successor.

In Jerusalem he saw Theodora Komnene, the beautiful widow of King Baldwin III and niece of the Emperor Manuel.

In order to bolster the defences of the kingdom against the growing strength of the Muslims, Baldwin III made the first direct alliance with the Byzantine Empire, by marrying Theodora Comnena, a niece of emperor Manuel ; Manuel married Baldwin's cousin Maria.

* 1153-The First Treaty of Constance is signed between Emperor Frederick I and Pope Eugene III, by the terms of which, the emperor is to prevent any action by Manuel I Comnenus to reestablish the Byzantine Empire on Italian soil and to assist the pope against his enemies in revolt in Rome.

* December 16 – Emperor Manuel III of Trebizond ( d. 1417 )

* Manuel III succeeds his father, Alexios III, as Emperor of Trebizond ( now north eastern Turkey ).

Abroad, Frederick intervened in the Danish civil war between Svend III and Valdemar I of Denmark and began negotiations with the Eastern Roman Emperor, Manuel I Comnenus.

Concerned over rumours that Alexander III was about to enter into an alliance with the Byzantine Emperor Manuel I, in October 1166, he embarked on his fourth Italian campaign, hoping as well to secure the claim of Paschal III, and the coronation of his wife Beatrice as Holy Roman Empress.

Letter by Manuel I Komnenos to Pope Eugene III on the issue of the crusades ( Constantinople, 1146, Vatican Secret Archives ): with this document, the Emperor answers to a previous papal letter, where the Pope asks Louis VII of France to free the Holy Land and reconquer Edessa, Mesopotamia | Edessa.

Realising that he had no hope of defeating Manuel, Raynald also knew that he could not expect any help from king Baldwin III of Jerusalem.

However, despite being distracted by a Cuman attack in the Balkans, in 1148 Manuel enlisted the alliance of Conrad III of Germany, and the help of the Venetians, who quickly defeated Roger with their powerful fleet.

After the death of King Manuel I in late 1521, his son and successor, King John III of Portugal set about reviewing the Portuguese government overseas.

In 1199-1201 another unsuccessful revolt was led by Manuel Kamytzes, son-in-law of Byzantine emperor Alexios III Angelos.

# Constance ( 1239 – 1269 ), married Juan Manuel, Lord of Villena, son of Ferdinand III

ca: Carles Manuel III de Sardenya

es: Carlos Manuel III de Cerdeña

ca: Víctor Manuel III d ' Itàlia

es: Víctor Manuel III de Italia

Failing to secure the support of either the Seljuk Turks or Nikephoros Melissenos ( both parties being his traditional enemies ), Nikephoros III was forced to abdicate in favour of the Komnenos dynasty, to which he was connected through the engagement of his grandson to the daughter of Alexios's older brother Manuel.

Lothair's successor Conrad III was approached in 1140 for a royal German bride for John's youngest son Manuel.

It also afforded him an opportunity, through the agency of Theodwin, a cardinal ever-vigilant for Crusade supporters, to strike up a correspondence with Conrad III of Germany in an effort to break his alliance with Manuel I Comnenus.

In 1376 – 1379 and again in 1390 they were supplanted by Andronikos IV and then his son John VII, but Manuel personally defeated his nephew with help from the Republic of Venice in 1390.

John I ( in Spanish: Juan I ) ( 24 August 1358 – 9 October 1390 ) king of the Crown of Castile, was the son of Henry II and of his wife Juana Manuel of Castile, daughter of Juan Manuel, Prince of Villena, who was a scion of a more recent branch of the royal house of Castile.

In 1390, he led an embassy sent to Venice by the emperor Manuel II Palaeologus to implore the aid of the Christian princes against the Muslim Turks.

Manuel III Megas Komnenos ( Greek: Μανουήλ Γ ΄ Μέγας Κομνηνός, Manouēl III Megas Komnēnos ) ( December 16, 1364 – March 5, 1417 ) was Emperor of Trebizond from March 20, 1390 to his death in 1417.

Manuel III became emperor in 1390.

Philadelphia was an independent, neutral city under the influence of the Latin Knights of Rhodes, when taken in 1390 by Sultan Bayezid I and an auxiliary Christian force under the Byzantine emperor Manuel II after a prolonged resistance, by which time all the other cities of Asia Minor had surrendered to the Ottomans.

During the brief usurpation of John VII in 1390, Manuel II ( 1391 – 1425 ) was able to gather only 5 galleys and 4 smaller vessels ( including some from the Knights of Rhodes ) to recapture Constantinople and rescue his father John V. Six years later, Manuel promised to arm 10 ships to assist the Crusade of Nicopolis ; twenty years later, he personally commanded 4 galleys and 2 other vessels carrying some infantry and cavalry, and saved the island of Thasos from an invasion.

* 1760 – Juan Manuel Olivares, Venezuelan composer ( d. 1797 )

* 1930 – Manuel Neri, American artist

* 1857 – Manuel de Escandón, Mexican polo player ( d. 1940 )

* 1828 – Manuel Pavía y Rodríguez de Alburquerque, Spanish general ( d. 1895 )

* 1916 – José Manuel Moreno, Argentine footballer ( d. 1978 )

* 1972 – Jay Manuel, Canadian make-up artist, photographer, and model

* 1848 – Camila O ' Gorman and Ladislao Gutierrez are executed on the orders of Argentine dictator Juan Manuel de Rosas.

* 1878 – Manuel L. Quezon, Filipino politician, 2nd President of the Philippines ( d. 1944 )

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.

* Infante Gonzalo Manuel Maria Bernardo Narciso Alfonso Mauricio of Spain ( 1914 – 1934 ), a hemophiliac, like his elder brother Alfonso.

* 1992 – A U. S. Federal Court finds former Panamanian dictator Manuel Noriega guilty of drug and racketeering charges.

* 1819 – Carlos Manuel de Céspedes, Cuban Revolutionary ( d. 1874 )

* 1946 – Manuel Roxas is elected the last President of the Commonwealth of the Philippines.

* 1951 – Juan Manuel Santos, Colombian politician, 59th President of Colombia

* 1897 – Manuel Ávila Camacho, Mexican politician, 45th President of Mexico ( d. 1955 )

* Platine War ( 1851 – 1852 ): The Brazilian Empire and its allies went to war against the dictator Juan Manuel de Rosas of the Argentine Confederation.

* De Paz Sánchez, Manuel Antonio ( en colaboración con José Fernández y Nelson López ) 1993 – 1994.

In 1206 – 1230, it was ruled by Manuel Maurozomes.

* 1980 – Manuel Wilhelm, German rugby player

* 1929 – Manuel Gomes da Costa, Portuguese politician ( b. 1863 )

* 1961 – Manuel Reuter, German race car driver

* 1496 – King Manuel I of Portugal issues a decree of expulsion of " heretics " from the country.

* 1566 – Manuel Cardoso, Portuguese composer ( d. 1650 )

* 1943 – Joan Manuel Serrat, Spanish musician