Some anchors are genetically distinctive and pick up deep shared ancestry or population-continuity signals that reach far beyond recent birthplaces. Your closest anchor reflects where your DNA fits best on the reference grid — which can point to a population that once spread across a broad area before modern borders existed, rather than where your most recent documented relatives lived.
This shows up especially with the Aegean Neolithic farmer signal (detectable across the whole Greek and Aegean-Anatolian region), the steppe-ancestry signal that entered the Balkans in the Bronze Age (spanning Serbia, Bulgaria, Romania, and parts of Greece), and the Late Bronze Age Aegean signal (which links Crete, the Cyclades, the Peloponnese, and Cyprus).