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Heads of State · Nekrolog

Cappenberger Barbarossakopf, portrait bust (head reliquary) of Emperor Friedrich I. Barbarossa.  Gilded bronze, around 1160. Collegiate Church of St. Johannes Evangelist zu Cappenberg (59379 Selm, NRW, D)
Frederick I Barbarossa is crowned Roman-German Emperor by Pope Hadrian IV .
Monument to Henry II on the outside of the Schottenstift
Duke Heinrich II. Jasomirgott founds the Schottenstift
in Vienna .
1155 in other calendars
Armenian calendar 603/604 (turn of the year July)
Ethiopian calendar 1147/48
Buddhist calendar 1698/99 (southern Buddhism); 1697/98 (alternative calculation according to Buddhas Parinirvana )
Chinese calendar 64th (65th) cycle

Year of the wood pig乙亥 ( at the beginning of the year wood dog 甲戌)

Chula Sakarat (Siam, Myanmar) / Dai calendar (Vietnam) 517/518 (turn of the year April)
Iranian calendar 533/534
Islamic calendar 549/550 (March 6-7)
Jewish calendar 4915/16 (29/30 August)
Coptic calendar 871/872
Malayalam calendar 330/331
Seleucid era Babylon: 1465/66 (turn of the year April)

Syria: 1466/67 (turn of the year October)

Spanish era 1193
Vikram Sambat (Nepalese Calendar) 1211/12 (turn of the year April)


Politics and world history

Holy Roman Empire / Italy

  • February to April: Frederick I Barbarossa besieges the city of Tortona on his Italian expedition , which is in conflict with the king-friendly Pavia . Captured Tortonese are publicly executed as a deterrent and the drinking water is poisoned with corpses and sulfur. The increasingly critical supply forces the city to seek peace and ultimately to submit . The emperor then promised that the city would not be damaged. Contrary to this promise, Tortona is destroyed by Pavia the next day.
  • June 18 : Friedrich Barbarossa is crowned Roman-German Emperor in Rome by Pope Hadrian IV . Shortly before, Friedrich rejected the offer of the Roman Senate to receive the imperial crown from the hand of the Roman people. Then, during the coronation, the Romans attacked the Angel's Bridge and in northern Trastevere , but they could be repulsed. However, the summer heat and supply problems soon force Friedrich to retreat. The planned campaign against the Normans is broken off without having achieved anything. As a result, Barbarossa cannot keep his promises from the Constance Treaty . Further conflicts with the Pope are therefore foreseeable. On the way back, the emperor imposed the ban on Milan in Verona after the latter refused to submit to imperial jurisdiction. Via Regensburg the way goes to Christmas to Worms , which is developing into an important center of power under the Hohenstaufen .
  • The termination of the Italian expedition led to a change in the political situation in Italy. As a result of the non-compliance with the Constance Treaty, the Roman Curia seeks the protection of its rights independently of the Empire and starts negotiations with the Normans in southern Italy .

Southern Italy

Crusader States

East asia

Go-Shirakawa Tennō

First documentary mentions




Date of birth saved

Exact date of birth unknown

Born around 1155


Date of death secured

Exact date of death unknown

Web links

Commons : 1155  - Collection of pictures, videos and audio files