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1236 in various calendars
Gregorian calendar	1236; MCCXXXVI
Ab urbe condita	1989
Armenian calendar	685; ԹՎ ՈՁԵ
Assyrian calendar	5986
Balinese saka calendar	1157–1158
Bengali calendar	643
Berber calendar	2186
English Regnal year	20 Hen. 3 – 21 Hen. 3
Buddhist calendar	1780
Burmese calendar	598
Byzantine calendar	6744–6745
Chinese calendar	乙未年 (Wood Goat); 3933 or 3726; — to —; 丙申年 (Fire Monkey); 3934 or 3727
Coptic calendar	952–953
Discordian calendar	2402
Ethiopian calendar	1228–1229
Hebrew calendar	4996–4997
Hindu calendars
- Vikram Samvat	1292–1293
- Shaka Samvat	1157–1158
- Kali Yuga	4336–4337
Holocene calendar	11236
Igbo calendar	236–237
Iranian calendar	614–615
Islamic calendar	633–634
Japanese calendar	Katei 2; (嘉禎２年)
Javanese calendar	1145–1146
Julian calendar	1236; MCCXXXVI
Korean calendar	3569
Minguo calendar	676 before ROC; 民前676年
Nanakshahi calendar	−232
Thai solar calendar	1778–1779
Tibetan calendar	阴木羊年; (female Wood-Goat); 1362 or 981 or 209; — to —; 阳火猴年; (male Fire-Monkey); 1363 or 982 or 210

Millennium:	2nd millennium
Centuries:	12th century; 13th century ; 14th century;
Decades:	1210s; 1220s; 1230s ; 1240s; 1250s;
Years:	1233; 1234; 1235; 1236 ; 1237; 1238; 1239;

Year 1236 (MCCXXXVI) was a leap year starting on Tuesday (link will display the full calendar) of the Julian calendar.

Events

By place

Byzantine Empire

Spring – A fleet consisting of ships from the republics of Venice, Genoa and Pisa arrive at Constantinople. It is headed by Geoffrey II of Villehardouin, ruler of Achaea, who brings 100 of his own knights, 300 cross-bowman, and 500 archers. Geoffrey, formally a vassal of Emperor John I of Constantinople, breaks the blockade of the city, sinks 15 Byzantine ships and enters the Golden Horn. A treaty is signed for two years after the intervention of Angelo Sanudo, duke of Archipelago.^[1]

Europe

June 20 – Treaty of Kremmen: Duke Wartislaw III recognizes the seignory of Henry Borwin III, lord of Rostock, after his successful expedition against Wartislaw, in which he has conquered Circipania, including the cities of Gnoien and Kalen. Meanwhile, Swietopelk II, Duke of Pomerania ("the Great") conquers Schlawe and Stolp, the eastern part of Pomerania. To ease the tensions with Brandenburg, Wartislaw signs the Kremmen agreement.
June – The 16-year-old Alexander Nevsky is elected by the Novgorodians as prince (knyaz) of Novgorod, beseeching the young Kievan noble to take charge of the city's military affairs.
June 29 – Siege of Córdoba: Castilian forces under King Ferdinand III ("the Saint") capture Muslim Córdoba from Emir Ibn Hud, as part of the Reconquista of the Iberian Peninsula.^[2]
July – At a diet (princely convention) in Piacenza, Emperor Frederick II proclaims his wish to recover all Italy for the Holy Roman Empire.^[3]
September 22 – Battle of Saule: The Lithuanians and Semigallians defeat the Livonian Brothers of the Sword, at Šiauliai in Lithuania.

England

January 14 – King Henry III marries the 14-year-old Eleanor of Provence, one of the four daughters of Raimond Berenguer, count of Provence. The ceremony takes place at Canterbury Cathedral, while Simon de Montfort, as Lord High Steward, takes care of the banquet and kitchen arrangements. Eleanor is crowned queen at Westminster Abbey shortly afterward.^[4]
A tournament at Tickhill turns into a battle between northerners and southerners, but peace is restored by papal legate Otto of Tonengo.^[5]

Mongol Empire

The Mongols under Batu Khan, eldest of Jochi, sweep across Central Asia. They settle in the Russian steppe, curtailing the power of the Kievan Rus', extracting tribute from their neighbors, and disrupting their relationship with the Byzantine Empire.
Autumn – Siege of Bilär: The Mongols under Batu Khan capture the capital city of Bilär after a siege that lasts for 45 days. The Volga Bulgars are defeated within the year, as are the Kipchaks and Alans.
Mongol–Song War: The Mongols under Ögedei Khan penetrate deep into the Southern Song. The important city of Xiangyang, gateway to the Yangtze plain, capitulates to the Mongols.^[6]

Asia

October 10 – Razia Sultana, daughter of Mamluk Sultan Shamsuddin Iltutmish, becomes the first female Muslim ruler of the Indian subcontinent, deposing her half-brother, Ruknuddin Firuz, as sultan of the Delhi Sultanate.
King Kalinga Magha ("the Tyrant") is expelled from Polonnaruwa to Jaffna, capital of the Jaffna Kingdom (located in modern Sri Lanka).

Africa

Kouroukan Fouga, the constitution of the Mali Empire, is created by an assembly of nobles of the Mandinka clan.

By topic

Literature

The Goryeo court in Korea orders the preparation of another set of woodblocks for printing the Buddhist Tripiṭaka ("Triple Basket") – which is intended both to gain protection against the Mongol invaders and to replace the earlier 11th century set that has been destroyed by the Mongols (see 1232).

Religion

Pope Gregory IX condemns the links that both the Knights Templer and Knights Hospitaller have with the Assassin fighters in the Middle East. He issues a bull (a formal papal proclamation) preventing further contact with the Assassins.
May 6 – Roger of Wendover, English Benedictine monk and chronicler, dies at St Albans Abbey. His chronicle is continued by Matthew Paris.

Births

January 1 – Baldwin de Redvers, English nobleman (d. 1262)
June 6 – Wen Tianxiang, Chinese poet and politician (d. 1283)
June 8 – Violant of Aragon, queen consort of Castile (d. 1301)
October – Qutb al-Din al-Shirazi, Persian polymath and poet (d. 1311)
after October – Alice de Lusignan (or Angoulême), French-born English countess (d. 1290)
November 8 – Lu Xiufu, Chinese general and politician (d. 1279)
Albert I, Duke of Brunswick-Lüneburg ("the Great"), German nobleman and regent (d. 1279)
Bayan of the Baarin (or Boyan), Mongol general (d. 1295)
Elizabeth of Hungary, duchess consort of Bavaria (d. 1271)
Henry II of Rodez, French nobleman and troubadour (d. 1304)
Olivier II de Clisson, Breton nobleman and knight (d. 1307)
Stephen the Posthumous, Hungarian pretender (d. 1271)

Deaths

January 14 – Sava ("the Enlightener"), Serbian archbishop
March 15 – Mu'in al-Din Chishti, Persian preacher (b. 1143)
March 28 – Conon of Naso, Italian priest and abbot (b. 1139)
April 11 – Walter II de Beauchamp, English sheriff (b. 1192)
May 1 – William d'Aubigny (or d'Albini), English nobleman
May 6 – Roger of Wendover, English monk and chronicler
May 7 – Agnellus of Pisa, Italian Franciscan friar (b. 1195)
June 10 – Diana degli Andalò, Italian nun and saint (b. 1201)
July 18 – Valdemar of Denmark, Danish bishop and statesman (b. 1158)
July 29 – Ingeborg of Denmark, queen consort of France (b. 1174)
August 16 – Thomas Blunville, English priest and bishop
August 17 – William de Blois, English bishop and sheriff
September 12 – Thomas of Marlborough, English abbot
September 22 – Volkwin von Naumburg, German knight
November 15 – Lope Díaz II, Castilian nobleman (b. 1170)
November 26 – Al-Aziz Muhammad, Ayyubid ruler (b. 1213)
Barisone III of Torres, Sardinian judge of Logudoro (b. 1221)
Dirk I van Brederode, Dutch nobleman and knight (b. 1180)
Fakhr-i Mudabbir, Ghaznavid historian and writer (b. 1157)
Gautier de Coincy, French abbot and troubadour (b. 1177)
John of Ibelin, constable and regent of Jerusalem (b. 1179)
Philip d'Aubigny, French nobleman and chancellor (b. 1166)
Saifuddin Aibak, Mamluk Sultanate governor and politician

References

^ Longnon, Jean (1969). The Frankish States in Greece, 1204–1311, p. 219. Madison, Milwaukee, and London: University of Wisconsin Press. ISBN 0-299-04844-6.
^ Linehan, Peter (1999). "Chapter 21: Castile, Portugal and Navarre". In David Abulafia (ed.). The New Cambridge Medieval History c.1198-c.1300. Vol. 5. Cambridge: Cambridge University Press. pp. 668–673. ISBN 0-521-36289-X.
^ Hywel Williams (2005). Cassell's Chronology of World History, p. 139. ISBN 0-304-35730-8.
^ Howell, Margaret (2001). Eleanor of Provence: Queenship in Thirteenth-Century England, pp. 15–17. Oxford, UK: Blackwell Publishers. ISBN 978-0-631-22739-7.
^ Hey, David. Medieval South Yorkshire.
^ John Man (2006). Kublai Khan: The Mongol king who remade China, p. 158. ISBN 978-0-593-05448-2.