1. Large quantities of roof and paving tiles and ceramics were collected during archaeological investigations by the National Museum of Antiquities in Leiden. These finds suggest the presence of a building nowadays covered by sediments of the Oosterschelde.
2. Tacitus and Medieval sources speak of holy places in forests. Tacitus mentions that the Germanic tribes honoured their gods not in temples but in forests under the stars.
3. It is unclear whether the base is made separately. For other examples of this type see Koster, 1997.