This legend refers to a historical event: Engelbert I, Archbishop of Cologne, was murdered on November 7, 1225.
Kunibert, the Lord of Ölberg, fought with the Archbishop of Cologne, Engelbert, over predominance in the Seven Hills. But Liba, his beautiful young daughter, was in love with Werner, the Archbishop’s nephew. Werner convinced his uncle to make the first step to end the feud. Engelbert offered peace to the Lord of Ölberg, but just earned scorn and derision.
But the worst was yet to come. Kunibert made a malignant plan. He gathered a few degenerated knights around him, they lay in wait for the Archbishop and murdered him. The other knights were shocked over this crime and decided to punish Kunibert and his murderous companions. Together they moved towards the Ölberg and set the castle on fire. Liba died in her father’s arms, and Werner, full of despair, became a monk.