family tree 
noun
A diagram showing the relationship between people in several generations of a family.Family history and family trees are important because they tell us where we have come from, the point of growth that we have reached, and with whom we connected....
- There is also a detailed chronology, family trees, maps and a list of contents.
- With a white chalky stone, the guide was kneeling on the kasbah roof, trying to draw the El Glaoui family tree on the dun-coloured surface.
Synonyms
ancestry, genealogy, descent, lineage, line, line of descent, bloodline, blood, parentage, pedigree, background, extraction, derivation, race, strain, stock, breed;
family, dynasty, house;
forebears, forefathers, antecedents, roots, origins
rare filiation, stirps