Pope Lucius I was the Bishop of Rome from 25 June 253 to his death in 254. He was banished soon after his consecration, but gained permission to return. He was mistakenly classified as a martyr in the persecution of Valerian, which did not begin until after Lucius' death.
A Danish legend held that the demons of Isefjord feared nothing but the skull of Lucius I, and when this skull was taken to Denmark, it brought peace, and Lucius was declared patron of Zealand. The skull was then preserved as a national relic until carbon dating proved that it did not date back as far as his time.