Probably there were cult houses in the Late Young Stone Age, from 4,300 BC. We for example know such buildings from Ludwigshafen and Sipplingen at the Lake Constance and from Marin/Les Piècettes at the Neuenburger Lake in Switzerland.
In Ludwigshafen-Seehalde and Sipplingen archaeologists found clay breasts in life like size which formed part of larger sceneries. They were painted with white chalk paint at the interior walls of lake dwelling houses and surrounded the spatial clay breasts. In Ludwigshafen, the paintings depicted a curious figure, probably a goddess or a female Shaman. Finds form both these houses also refer to a cultic or religious function: in Ludwigshafen a clay vessel with small breasts, which contained debris of birch tar. Was this a smoking container? One also found very fine textiles. In Sipplingen the horn ends of an auerochs were among the remarkable finds. Auerochs horns are also known form other sites of this era in a cultic/religious context, for example in the earthwork from Bruchsal-Aue near Karlsruhe. Finds from clay from walls of houses with clay breasts are well known form the period 4,300–3,700 BC. We know them from Elsaß, Lower Austria, Northern Switzerland and Baden-Württemberg, which only by itself is good for 7 finds. If you also count the gynaecomorphous containers (= cups or pots with graphically modelled female breasts), there is a large number of sites where cults were executed which between 4,300 and 3,700 were in connection to such representations. However, female priests or female shamans cannot be proven for this period.