1157

1157 in various calendars
Gregorian calendar	1157; MCLVII
Ab urbe condita	1910
Armenian calendar	606; ԹՎ ՈԶ
Assyrian calendar	5907
Balinese saka calendar	1078–1079
Bengali calendar	564
Berber calendar	2107
English Regnal year	3 Hen. 2 – 4 Hen. 2
Buddhist calendar	1701
Burmese calendar	519
Byzantine calendar	6665–6666
Chinese calendar	丙子年 (Fire Rat); 3854 or 3647; — to —; 丁丑年 (Fire Ox); 3855 or 3648
Coptic calendar	873–874
Discordian calendar	2323
Ethiopian calendar	1149–1150
Hebrew calendar	4917–4918
Hindu calendars
- Vikram Samvat	1213–1214
- Shaka Samvat	1078–1079
- Kali Yuga	4257–4258
Holocene calendar	11157
Igbo calendar	157–158
Iranian calendar	535–536
Islamic calendar	551–552
Japanese calendar	Hōgen 2; (保元２年)
Javanese calendar	1063–1064
Julian calendar	1157; MCLVII
Korean calendar	3490
Minguo calendar	755 before ROC; 民前755年
Nanakshahi calendar	−311
Seleucid era	1468/1469 AG
Thai solar calendar	1699–1700
Tibetan calendar	阳火鼠年; (male Fire-Rat); 1283 or 902 or 130; — to —; 阴火牛年; (female Fire-Ox); 1284 or 903 or 131

Millennium:	2nd millennium
Centuries:	11th century; 12th century ; 13th century;
Decades:	1130s; 1140s; 1150s ; 1160s; 1170s;
Years:	1154; 1155; 1156; 1157 ; 1158; 1159; 1160;

Year 1157 (MCLVII) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar.

Events

January 12–March 16 – Caliph Al-Muqtafi successfully defends Baghdad against the coalition forces of Sultan Muhammad of Hamadan, and Atabeg Qutb-adin of Mosul.^[1]
Albert I of Brandenburg begins his ruthless program to pacify the Slavic region.^[2]
June 11 – Albert I of Brandenburg, also called The Bear (Ger: Albrecht der Bär), becomes the founder of the Margraviate of Brandenburg, Germany and the first Margrave.^[3]
August 12 – The 1157 Hama earthquake takes place after a year of foreshocks. Its name is taken from the city of Hama, in west-central Syria (then under Seljuk rule), where the most casualties are sustained.^[4]
August 21 – Sancho III and Ferdinand II, the sons of King Alfonso VII of Castile, divide his kingdom between them upon his death.^[5]
October 23 – Battle of Grathe Heath: A civil war in Denmark ends with the death of King Sweyn III. Valdemar I of Denmark becomes king of all Denmark, and restores and rebuilds the country.^[6]
Henry II of England grants a charter to the merchants of Lincoln (approximate date).^[7]
Battle of Ewloe: Henry II of England invades Wales, and is defeated by Owain Gwynedd.^[8]

Nur ad-Din Zengi besieges the Knights Hospitaller in the crusader fortress of Banyas, routs a relief army led by King Baldwin III of Jerusalem, and takes Grand Master Bertrand de Blanquefort prisoner.^[9]

January 24 or January 25 – Agnes of Babenberg, Politically active High Duchess consort of Poland (b. 1111)^[14]
May 8 – Ahmed Sanjar, Great Seljuk Sultan (b. 1084 or 1086)^[15]
May 15 – Yury Dolgoruky, Russian prince (b. c. 1099)^[16]
August 21 – King Alfonso VII of Castile (b. 1105)^[17]
October 23 – King Sweyn III of Denmark (b.c. 1125) (in battle)^[18]
date unknown – King Eystein II of Norway (b.c. 1125)^[19]

Gregorian calendar	1157 MCLVII
Ab urbe condita	1910
Armenian calendar	606 ԹՎ ՈԶ
Assyrian calendar	5907
Balinese saka calendar	1078–1079
Bengali calendar	564
Berber calendar	2107
English Regnal year	3 Hen. 2 – 4 Hen. 2
Buddhist calendar	1701
Burmese calendar	519
Byzantine calendar	6665–6666
Chinese calendar	丙子年 (Fire Rat) 3854 or 3647 — to — 丁丑年 (Fire Ox) 3855 or 3648
Coptic calendar	873–874
Discordian calendar	2323
Ethiopian calendar	1149–1150
Hebrew calendar	4917–4918
Hindu calendars
- Vikram Samvat	1213–1214
- Shaka Samvat	1078–1079
- Kali Yuga	4257–4258
Holocene calendar	11157
Igbo calendar	157–158
Iranian calendar	535–536
Islamic calendar	551–552
Japanese calendar	Hōgen 2 (保元２年)
Javanese calendar	1063–1064
Julian calendar	1157 MCLVII
Korean calendar	3490
Minguo calendar	755 before ROC 民前755年
Nanakshahi calendar	−311
Seleucid era	1468/1469 AG
Thai solar calendar	1699–1700
Tibetan calendar	阳火鼠年 (male Fire-Rat) 1283 or 902 or 130 — to — 阴火牛年 (female Fire-Ox) 1284 or 903 or 131