diff --git a/README.md b/README.md
index 0e37866c8c402e1ae3a5b20a4601202692ec5e58..459755632c7fa75caa08f627ce21f26ac49d4f17 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,9 @@ CaosDB project.
   - Server-side scripting paths must be given, otherwise server-side scripting will be omitted.
 - Run the tests with `pytest` or `pytest-3` (depending on your system).
 - If you want to run just a single test, you can also select a single test file:  
-  `pytest-3 tests/test_issues.py`
+  `pytest-3 tests/test_issues.py`  
+  or a test matching a regular expression:  
+  `pytest-3 tests/test_issues.py -k issue_123`
 
 ## Requirements ##
 
diff --git a/tests/test_parents.py b/tests/test_parents.py
index d038350a27cb0a9bb2db79020957dc401e1b1e10..c8ddeebc006fc1c6d7a27aa5feceb0e632614332 100644
--- a/tests/test_parents.py
+++ b/tests/test_parents.py
@@ -41,3 +41,23 @@ def test_parent_name_id_mismatch():
     with raises(db.TransactionError):
         rt2.insert()
         print(rt2)
+
+
+def test_get_parents_recursively():
+    """Test for https://gitlab.com/caosdb/caosdb-pylib/-/issues/90
+
+> Entity.get_parents_recursively() does not work unless the full ancestry has been retrieved from
+> the server.
+"""
+    # Setup
+    rt_A = db.RecordType(name="TestA")
+    rt_B = db.RecordType(name="TestB").add_parent(rt_A)
+    rt_C = db.RecordType(name="TestC").add_parent(rt_B)
+    db.Container().extend([rt_A, rt_B, rt_C]).insert()
+
+    # Retrieve only C
+    retrieved_C = db.RecordType(name="TestC").retrieve()
+    parents = retrieved_C.get_parents_recursively()
+    assert len(parents) == 2
+    assert "TestB" in [p.name for p in parents]
+    assert "TestA" in [p.name for p in parents]