1155 in history

Born in 1155

Feb 28 Henry the Young King the second of five sons of Henry II of England and Eleanor of Aquitaine but the first to survive infancy. He was officially King of England; Duke of Normandy, Count of Anjou and Maine
May 17 Jien a Japanese poet, historian, and Buddhist monk.
Jun 4 Baldwin de Redvers 1st Earl of Devon the son of Richard de Redvers and his wife Adeline Peverel.
Nov 11 Alfonso VIII of Castile the King of Castile from 1158 to his death and King of Toledo. He is most remembered for his part in the Reconquista and the downfall of the Almohad Caliphate. After having suffered a great defeat with his own army at Alarcos against the Almohads, he led the coalition of Christian princes and foreign crusaders who broke the power of the Almohads in the Battle of the Navas de Tolosa in 1212, an event which marked the arrival of a tide of Christian supremacy on the Iberian peninsula

Died in 1155

Feb 6 Sigurd II of Norway king of Norway from 1136 to 1155. He was son of Harald Gille, king of Norway and his mistress Tora Guttormsdotter. He served as co-ruler with his half-brothers, Inge Haraldsson and Eystein Haraldsson. His epithet Munn means "the Mouth" in Old Norse. He was killed in the power-struggle against his brother, Inge, in an early stage of the civil war era in Norway
Aug 22 Emperor Konoe the 76th emperor of Japan, according to the traditional order of succession.