Of, pertaining to, derived from, or possessed by, an ancestor or ancestors; as, an ancestral estate
You use ancestral to refer to a person's family in former times, especially when the family is important and has property or land which they have had for a long time. the family's ancestral home in southern Germany
inherited or inheritable by established rules (usually legal rules) of descent; "ancestral home"; "ancestral lore"; "hereditary monarchy"; "patrimonial estate"; "transmissible tradition"