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1228 in various calendars
Gregorian calendar	1228; MCCXXVIII
Ab urbe condita	1981
Armenian calendar	677; ԹՎ ՈՀԷ
Assyrian calendar	5978
Balinese saka calendar	1149–1150
Bengali calendar	635
Berber calendar	2178
English Regnal year	12 Hen. 3 – 13 Hen. 3
Buddhist calendar	1772
Burmese calendar	590
Byzantine calendar	6736–6737
Chinese calendar	丁亥年 (Fire Pig); 3925 or 3718; — to —; 戊子年 (Earth Rat); 3926 or 3719
Coptic calendar	944–945
Discordian calendar	2394
Ethiopian calendar	1220–1221
Hebrew calendar	4988–4989
Hindu calendars
- Vikram Samvat	1284–1285
- Shaka Samvat	1149–1150
- Kali Yuga	4328–4329
Holocene calendar	11228
Igbo calendar	228–229
Iranian calendar	606–607
Islamic calendar	625–626
Japanese calendar	Antei 2; (安貞２年)
Javanese calendar	1136–1137
Julian calendar	1228; MCCXXVIII
Korean calendar	3561
Minguo calendar	684 before ROC; 民前684年
Nanakshahi calendar	−240
Thai solar calendar	1770–1771
Tibetan calendar	阴火猪年; (female Fire-Pig); 1354 or 973 or 201; — to —; 阳土鼠年; (male Earth-Rat); 1355 or 974 or 202

Millennium:	2nd millennium
Centuries:	12th century; 13th century ; 14th century;
Decades:	1200s; 1210s; 1220s ; 1230s; 1240s;
Years:	1225; 1226; 1227; 1228 ; 1229; 1230; 1231;

Year 1228 (MCCXXVIII) was a leap year starting on Saturday of the Julian calendar.

Events

By place

Sixth Crusade

Summer – Emperor Frederick II sails from Brindisi with a expeditionary force and arrives in Acre in the Middle East on September 7. He disembarks a well-trained and equipped Crusader army (some 10,000 men and 2,000 knights). After his arrival in Palestine, Frederick is again excommunicated by Pope Gregory IX, for setting out for the Crusade before he has obtained absolution from his previous ex-communication (see 1227). Many of the local nobility, the Knights Templar and Knights Hospitaller deny him their support for the Crusade. Frederick can only rely on his own army and the Teutonic Knights, whose Grand Master, Hermann von Salza, is his friend.^[1]
Autumn – Frederick II receives an embassy of Sultan Al-Kamil, including Fakhr al-Din ibn as-Shaikh, at the Hospitaller camp at Recordane, near Acre. Meanwhile, Al-Kamil is engaged in suppressing a rebellion in Syria and has concentrated his forces on a siege at Damascus. Frederick is pressed for time, because his army is not large enough for a major campaign. Al-Kamil, who has full control of Jerusalem, starts diplomatic negotiations.^[2]
November – Frederick II puts pressure on the negotiations by a military display. He assembles his Crusader army and marches down the coast to Jaffa – which he proceeds to refortify. At the same moment, Ayyubid forces under An-Nasir Dawud, who are not participating in the revolt at Damascus, move to Nablus, to intercept Al-Kamil's supply lines. Al-Kamil breaks off the negotiations, saying that the Crusaders have pillaged several Muslim villages, and only resumes them again when Frederick pays out compensation to the victims.^[2]

Europe

April 25 – The 16-year-old Isabella II, Holy Roman Empress and wife of Frederick II, dies after giving birth to her second child, Conrad IV, at Andria. He receives the title King of Jerusalem (as Conrad II) – with Frederick as regent. By his father, Conrad is the grandson of the Hohenstaufen Emperor Henry VI and great-grandson of the late Emperor Frederick I (Barbarossa).
Emperor Robert I (or Courtenay) dies after a 7-year reign in Morea (Southern Greece). He is succeeded by his 11-year-old brother, Baldwin II, as ruler of the Latin Empire in Constantinople, with John of Brienne as regent.
King James I (the Conqueror) launches a major offensive against the Almohads in Majorca. At the same moment, Emir Ibn Hud al-Yamadi (confronted by increasing Christian pressure) denounces Almohad rule in Murcia (modern Spain) and acknowledges the Abbasid Caliphate as legitimate overlord, in effect declaring independence.^[3] Other notable Christian success: King Alfonso IX of León conquers Mérida.^[4]
December 23 – Stephen of Anagni, Italian papal chaplain, is commissioned to collect a special tax in England, Ireland, Scotland and Wales to finance Gregory X's War of the Keys against Frederick II.

Asia

Battle of Bolnisi: Khwarazmian forces led by Sultan Jalal al-Din Mangburni defeat a coalition of Georgians, Kipchaks, Alans, Vainakhs and Laks (some 40,000 men) at Bolnisi (modern Georgia).^[5]
King Sukaphaa establishes the Ahom Dynasty and becomes the first Ahom ruler in Assam (until 1268).

By topic

Cities and Towns

The Transylvanian town of Reghin is first mentioned, in a charter of King Andrew II of Hungary.

Markets

The city of Tournai emits its first recorded life annuity, thus confirming a trend of consolidation of public debts started ten years earlier, in Reims.^[6]
The first evidence is uncovered of the use of the Knights Templar as cashiers by King Henry III of England, to safely transfer important sums to the continent, using letters of exchange. This shows that large transfers could take place across Europe, even before the emergence of important networks of Italian merchant-bankers.^[7]

Religion

July 16 – Saint Francis of Assisi is canonized by Gregory IX.

Births

April 25 – Conrad IV (or Conrad II), king of Germany (d. 1254)^[8]
Alfonso of Brienne, Norman nobleman and knight (d. 1270)
Bartolo da San Gimignano, Italian Franciscan priest (d. 1300)
Eleanor de Braose, Cambro-Norman noblewoman (d. 1251)
Ibn Daqiq al-'Id, Egyptian scholar, jurist and writer (d. 1302)
Shihab al-Din al-Qarafi, Egyptian scholar and jurist (d. 1285)
Takatsukasa Kanehira, Japanese nobleman (kugyō) (d. 1294)
Wang Yun, Chinese politician, poet and writer (d. 1304)

Deaths

January 13 – Yvette of Huy, Belgian anchoress (b. 1158)
January 31 – Guy de Montfort, French nobleman and knight
February 17 – Henry I, German nobleman and knight (b. 1155)
February 18 – Vladislaus II, margrave of Moravia (b. 1207)
April 25 – Isabella II, queen and regent of Jerusalem (b. 1212)
June 18 – Mathilde of Bourbon, French noblewoman (b. 1165)
July 9 – Stephen Langton, archbishop of Canterbury (b. 1150)
August 8 – Rujing, Japanese Sōtō Zen patriarch (b. 1163)
September 24 – Stefan the First-Crowned, king of Serbia
October 15 – Shichijō-in, Japanese noblewoman (b. 1157)
October 31 – Eustace of Fauconberg, bishop of London
December 4 – Bruno von Porstendorf, bishop of Meissen
December 8 – Geoffrey de Burgh, bishop of Ely (b. 1180)
Ahmad ibn Munim, Moroccan mathematician and writer
Anders Sunesen, Danish archbishop and writer (b. 1167)
Beatrice of Albon, duchess consort of Burgundy (b. 1161)
Desiderius (Dezső), Hungarian bishop of Csanád and chancellor
Geoffrey I of Villehardouin, French nobleman and knight
Henry de Loundres, Norman churchman and archbishop
Ibn Abi Tayyi, Syrian historian, poet and writer (b. 1180)
Lady of Neuville ("Eudoxie"), Latin empress consort
Máel Coluim I, Scottish nobleman and knight (b. 1204)
Maria of Courtenay, empress consort of the Empire of Nicaea and empress regent of Constantinople
Reginald de Braose, Norman Marcher Lord (b. 1182)
Robert I (Courtenay), Latin Emperor of Constantinople
Robert de Vieuxpont (or Vipont), Anglo-Norman landowner
Stephen Devereux, Norman Marcher Lord (b. 1191)
Zhang Congzheng, Chinese physician (b. 1156)

References

^ Steven Runciman (1952). A History of The Crusades. Vol III: The Kingdom of Acre, p. 154. ISBN 978-0-241-29877-0.
^ ^a ^b Steven Runciman (1952). A History of The Crusades. Vol III: The Kingdom of Acre, p. 156. ISBN 978-0-241-29877-0.
^ Linehan, Peter (1999). "Chapter 21: Castile, Portugal and Navarre". In Abulafia, David (ed.). The New Cambridge Medieval History c.1198-c.1300. Cambridge University Press. pp. 668–699 [672]. ISBN 0-521-36289-X.
^ Picard, Christophe (2000). Le Portugal musulman (VIIIe-XIIIe siècle. L'Occident d'al-Andalus sous domination islamique. Paris: Maisonneuve & Larose. p. 110. ISBN 2-7068-1398-9.
^ Rayfield, Donald (2012). Edge of Empires: A History of Georgia, p. 124. London: reaktion Books. ISBN 1-780-23030-3.
^ Zuijderduijn, Jaco (2009). Medieval Capital Markets. Markets for renten, state formation and private investment in Holland (1300-1550). Leiden/Boston: Brill. ISBN 978-9-00417565-5.
^ Ferris, Eleanor (1902). "The Financial Relations of the Knights Templars to the English Crown". American Historical Review. 8 (1): 1–17. doi:10.2307/1832571. JSTOR 1832571.
^ "Conrad IV | king of Germany". Encyclopedia Britannica. Retrieved February 14, 2020.