1156

Events 
 Establishment of the Carmelite Order
 Hogen Rebellion in Japan
 January 20 – According to legend, freeholder Lalli slays English crusader Bishop Henry with an axe on the ice of the lake Köyliönjärvi in Finland.
 The Privilegium Minus elevates Austria to the status of a duchy ruled by the Babenburgs family. (see History of Austria).
 Mosan artists create the Stavelot Triptych, a masterpiece of goldsmithing, as a reliquary to house purported pieces of the True Cross.