These genealogies, in turn, are used in other auxiliary sciences. In numismatics - coins dating to the reign of a dynasty, a monarch or ruling lord. In archeology, as well as in ethnographic research genealogy sometimes makes it possible to refine the dating of buildings, household items (if known, for example, what kind of generation owned the house, who was acquired from relatives of those or other objects, buildings, etc.).
Particularly closely connected with the genealogy of sources. This applies especially to the development of specific techniques for using various sources on the nature of genealogical research and analysis of their reliability. In turn, genealogy, armed with knowledge of the history of families, their relationships and destinies for centuries, helping to specific search of historical sources - documents from family archives, which has repeatedly changed owners, passing from hand to hand.