|Ab urbe condita||1928|
|Balinese saka calendar||1096–1097|
|English Regnal year||21 Hen. 2 – 22 Hen. 2|
|Chinese calendar||甲午年 (Wood Horse)|
3871 or 3811
— to —
乙未年 (Wood Goat)
3872 or 3812
|- Vikram Samvat||1231–1232|
|- Shaka Samvat||1096–1097|
|- Kali Yuga||4275–4276|
|Japanese calendar||Jōan 5 / Angen 1|
|Minguo calendar||737 before ROC|
|Seleucid era||1486/1487 AG|
|Thai solar calendar||1717–1718|
1301 or 920 or 148
— to —
1302 or 921 or 149
|Wikimedia Commons has media related to 1175.|
- King Henry II begins living openly with his mistress Rosamund Clifford, raising suspicions about their relationship and alienating Henry's wife, Queen Eleanor of Aquitaine.
- Treaty of Windsor: High King Ruaidrí Ua Conchobair (or Roderic O'Conner) relinquishes his title and agrees to submit to Henry II as vassal of Connacht in Ireland.
- Winter – The Massacre of Abergavenny ends with several Welsh noblemen dead, at the orders of Lord William de Braose.
- Under the admirals of the clan Banu Mardanish, an Almohad fleet suffers a large defeat at the hand of the Portuguese, as they are trying to re-conquer Lisbon.
- Vordingborg Castle is completed by King Valdemar I (the Great) of Denmark as a defensive fortress.
- The University of Modena and Reggio Emilia in Italy is founded.
- May 22 – A group of Isma'ili Assassins gains access into Saladin's camp and attempts to kill him during the siege of Aleppo. But his bodyguard saves his life, the others are slain while trying to escape.
- The Chinese court establishes several government-paper money factories in the cities of Chengdu, Hangzhou and Huizhou. In Hangzhou alone a daily workforce of more than 1,000 men is employed.
- The Namayan Kingdom formed by a confederation of barangays, reaches its peak on Luzon (modern Philippines).
- February 4 – Nadaungmya, king of Burma (d. 1235)
- Az-Zahir, caliph of the Abbasid Caliphate (d. 1226)
- Emo of Friesland, Frisian scholar and abbot (d. 1237)
- Frederick I (the Catholic ), duke of Austria (d. 1198)
- Henry Audley (or Aldithel), English nobleman (d. 1246)
- Herman II, German nobleman (House of Lippe) (d. 1229)
- Hōjō Tokifusa, Japanese nobleman and monk (d. 1240)
- Margaret of Hungary, Byzantine empress (d. 1223)
- Michael Scot, Scottish mathematician and scholar (d. 1232)
- Otto IV, Holy Roman Emperor (House of Welf) (d. 1218)
- Philip I (the Noble), margrave of Namur (d. 1212)
- Raymond of Penyafort, Spanish Dominican friar (d. 1275)
- Robert Grosseteste, English statesman (d. 1253)
- Roger III, king of Sicily (House of Hauteville) (d. 1193)
- Subutai, Mongol general and strategist (d. 1248)
- Theodore I (Laskaris), emperor of Nicaea (d. 1221)
- Yolanda, empress of the Latin Empire (d. 1219)
- January 12 – Yi Ui-bang, Korean military leader (b. 1121)
- March 5 – Frederick of Hallum, Frisian priest and abbot
- May 15 – Mleh I, prince of Armenia ("Lord of the Mountains")
- July 1 – Reginald de Dunstanville, 1st Earl of Cornwall (b. 1110)
- July 27 – Ponce de Minerva, French nobleman and general
- October 19 – Andrew of Saint Victor, English abbot and scholar
- November 13 – Henry of France, archbishop of Reims (b. 1121)
- Maria Torribia (or la Cabeza), Spanish laywoman and hermit
- Nicholas Hagiotheodorites, Byzantine scholar and official
- King John by Warren. Published by University of California Press in 1961. p. 26.
- Picard C. (1997). La mer et les musulmans d'Occident au Moyen Age. Paris: Presses Universitaires de France, p.77.
- David Nicolle (2011). Osprey: Command - Saladin, pp.20–21. ISBN 978-1-84908-317-1.
- Needham, Joseph (1986). Science and Civilisation in China: Volume 5: Part 1, p. 48. Cambridge University Press.
- "About Pasay - History: Kingdom of Namayan". Pasay city government. City Government of Pasay. Archived from the original on September 21, 2010. Retrieved February 5, 2008.