|Ab urbe condita||1888|
|Balinese saka calendar||1056–1057|
|English Regnal year||35 Hen. 1 – 1 Ste. 1|
|Chinese calendar||甲寅年 (Wood Tiger)|
3831 or 3771
— to —
乙卯年 (Wood Rabbit)
3832 or 3772
|- Vikram Samvat||1191–1192|
|- Shaka Samvat||1056–1057|
|- Kali Yuga||4235–4236|
|Japanese calendar||Chōshō 4 / Hōen 1|
|Minguo calendar||777 before ROC|
|Seleucid era||1446/1447 AG|
|Thai solar calendar||1677–1678|
1261 or 880 or 108
— to —
1262 or 881 or 109
|Wikimedia Commons has media related to 1135.|
- The troops of Roger II of Sicily take Djerba.
- The Hammadid Emirate launches an assault against Mahdia in Ifriqiya.
- Song Dynasty Chinese general Yue Fei defeats the rebel forces of Yang Yao, by entangling his swift paddle-wheel ships with rotten logs and other debris, precariously placed in the river. Yue Fei's forces easily board their ships and win a victory.
- The domination of Baghdad by the Seljuk Turks ends.
- May 26 – Alfonso VII of León and Castile is crowned in the Cathedral of Leon as Imperator totius Hispaniae, "Emperor of All the Spains".
- 10 August - The Battle of Konungahella is fought.
- December 1 – Stephen succeeds his uncle Henry I, as king of England. Matilda, daughter of Henry I and widow of Holy Roman Emperor Henry V, opposes Stephen and claims the throne as her own.
- The first records of the Manor of Cramlington come into existence.
- May 26 – A fire in London seriously damages St Paul's Cathedral and London Bridge on Pentecost.
- The Pisans, in the service of the Holy See, sack the city of Amalfi.
- The Republic of Florence keeps expending its control over its surrounding countryside, and conquers the neighboring city of Montebuoni.
- A Moorish fleet raids the Catalan port-town of Elna.
- Petronila of Aragon, queen regnant of Aragon (d. 1174)
- William of Newburgh, English historian and monk (d. 1198)
- Peter of Blois, French poet and diplomat (d. 1203)
- Joachim of Fiore, Italian mystic and theologian (d. 1201)
- Maimonides, Spanish philosopher, rabbi, and physician (d. 1204)
- Sharafeddin Tusi, Persian mathematician (d. 1213)
- Hafsa Bint al-Hajj al-Rukuniyya, Andalusian poet (approximate date; d. c. 1190)
- Johns, Jeremy (2002). Arabic Administration in Norman Sicily: The Royal Diwan. Cambridge Studies in Islamic Civilization. Cambridge University Press. p. 85. ISBN 978-0521816922.
- McGrank, Lawrence (1981). "Norman crusaders in the Catalan reconquest: Robert Burdet and the principality of Tarragona, 1129-55". Journal of Medieval History. 7 (1): 67–82. doi:10.1016/0304-4181(81)90036-1.