+A [Surname](/wiki/surname) is a hereditary name shared by members of a [Family](/wiki/family), often indicating a common ancestry. It is a key element in [Personal Name](/wiki/personal_name) systems, tracing lineage across generations.
+## See also
+- [Genealogy](/wiki/genealogy)
+- [Naming Convention](/wiki/naming_convention)
+- [Family Tree](/wiki/family_tree)
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