The in our area ruling king of animals, the lion, has been enthroned during the 12th century. His predecessor was the bear, who was worshipped by the heathens of Europe for centuries as the central power animal. The rising Christianity did of course not appreciate this and started demonizing the bear to lift the lion on the throne, to whom they ascribed more and more Christian virtues during the Middle Ages. Considering these circumstances there are the following questions to ask: To what extent has the basis of the perception of the two animal kings been created in pre-Christian times, in the Bible and the earliest exegetical writings? What characteristics have been ascribed to the animals in the course of the Middle Ages? What was the role of the bear within the European heathens beliefs? How did the contempt of the bear manifest in Christian symbols and art? Since when is there an improvingly positive recognition of the symbolical presence of the lion and what events and circumstances, during the 12th century, eventually lead to its symbolical crowning? This thesis is the attempt to answer these questions.