We do not know exactly how large prehistoric families were because archaeological finds cannot tell us much about this. Research to present tday hunters / gatherers reveal, the generally speaking, have small families. Many plans of farms of the new Stone Age, Bronze Age and iron Age are known. Based on therir surface, the number of people living in them can be estimated. Depending on the exact size, the estimations vary between 8–20 persons per farm. In a prehistoric farm, presumably not only parents and their children were housed, but as well grantparents and possibly other family members (so called ‚larger families‘).