During the middle ages, jesters had to liven up things. They were often either deformed (e.g. a lump), small of posture, and had a big mouth and ears. Paep Thoon, who lived in Leuven during the 15th century (1430-1487), was such a character. He was an organist at the fraternity of the Holy Sacrament at St. Peter’s church. He was known to blurt out the truth either by means of a joke or a sarcastic remark. He never lost his sense of humor and on his dying bed reportedly asked to be buried in upright position, and beneath a gargoyle – so that he would never be thirsty.

In 1991, a Paep Thoon statue by Peter Vanbekbergen was placed at the Leie where the river Dyle crosses / runs under Brusselsestraat.