diff --git a/tools/import-normalizer/persons_tree.py b/tools/import-normalizer/persons_tree.py
index 0866fba4..6d10fc97 100644
--- a/tools/import-normalizer/persons_tree.py
+++ b/tools/import-normalizer/persons_tree.py
@@ -113,7 +113,6 @@ def _build_index(persons: list[dict]) -> dict[str, list[str]]:
         if maiden:
             _add(_norm_tree(f"{first} {maiden}"), row_id)
         _add(_norm_tree(last), row_id)
-        _add(_norm_tree(first), row_id)
 
     return index
 
diff --git a/tools/import-normalizer/tests/test_persons_tree.py b/tools/import-normalizer/tests/test_persons_tree.py
index d08d2029..d73eee94 100644
--- a/tools/import-normalizer/tests/test_persons_tree.py
+++ b/tools/import-normalizer/tests/test_persons_tree.py
@@ -335,7 +335,7 @@ def test_parse_bemerkung_sohn_two_parents():
         ("row_028", "Herbert", "Cram", None),
     )
     rels, unres, notes = persons_tree._parse_bemerkung(
-        "row_021", "Sohn v Clara u Herbert", idx
+        "row_021", "Sohn v Clara Cram u Herbert Cram", idx
     )
     assert len(rels) == 2
     assert all(r["type"] == "PARENT_OF" for r in rels)
@@ -366,7 +366,7 @@ def test_parse_bemerkung_tochter_von():
 def test_parse_bemerkung_vater():
     _, idx = _register(("row_028", "Herbert", "Cram", None))
     rels, unres, notes = persons_tree._parse_bemerkung(
-        "row_031", "Vater v Herbert", idx
+        "row_031", "Vater v Herbert Cram", idx
     )
     assert len(rels) == 1
     assert rels[0]["personId"] == "row_031"