In 1954 a stone and timber-built mortuary house belonging to the Funnel-Beaker (TRB) culture was excavated at Tustrup, in the county of Randers in Eastern Jutland. At that time such structures were unknown in the area of the Funnel-Beaker culture, but, five years later, a very similar mortuary house was found at Ferslev, just south of the Limfjord, in the neighbouring county of Aalborg. From the archaeological evidence Tustrup dates from the very beginning of the period when Passage Graves (Jættestuer) were being built in Denmark. The structure and the ritual carried out in both the mortuary houses, as it could be deduced from the content and disposition of the grave goods, adds very considerably to our knowledge of the burial practices of the megalith builders of Denmark. Quite apart from this, the discoveries at Tustrup and Ferslev provide us with good fixed points in the relative and absolute chronology of the Funnel-Beaker culture since each house contained a large number of highly ornamented pots as well as charcoal from the walls and roofs of the houses, which could be dated by the C14 method.