In the Cathedral of St. Quintinus in Hasselt is exposed the relic of the Eucharistic miracle that took place in Herkenrode in 1317. During the course of the centuries, many tests were done to ascertain the miraculous preservation of the consecrated Host from which blood came forth. We recall the one done in the 18th century by the Apostolic Nuncio Carafa and the Bishop of Liège or the one done by the Archbishop of Malines during a visit of the Archduchess Isabel. In the cathedral we also find numerous paintings depicting the miracle, done by a pupil of Jordaens, Jan.