All times in UTC ·
Dashed edge = started before, or continues beyond, this day
Events on Thursday 20 August 1153 1
1090 – 1153Bernard of Clairvaux (1090-1153)Died 20 August 1153, aged 63Bernard was the leading churchman of his age, founding the abbey of Clairvaux and driving the rapid growth of the Cistercian order across Europe. He preached the Second Crusade, advised popes, and wrote influential theological and mystical works. He was canonized in 1174 and remains one of the most revered medieval saints.