diff --git a/CHANGELOG.md b/CHANGELOG.md
index 00252658b4fe2117100a695f270bc66b752431bd..33fdff70f9af8d1c2174dc0ec297b08762fdeb63 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,24 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added ###
 
+### Changed ###
+
+### Deprecated ###
+
+### Removed ###
+
+### Fixed ###
+- A RecordType with multiple Parents no longer causes an error during
+  collection of identifiables
+
+### Security ###
+
+### Documentation ###
+
+## [0.11.0] - 2025-03-05 ##
+
+### Added ###
+
 - Validation module for checking a list of generated records against a list of json schemas
   that can be generated from a yaml data model file.
 - DictElementConverters can now make use of `match_properties` which
@@ -46,10 +64,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   `True`) are now interpreted as empty strings in
   `converters.match_name_and_value` instead of being cast to string naïvely
 
-### Deprecated ###
-
-### Removed ###
-
 ### Fixed ###
 
 - `spss_to_datamodel` script works again.
@@ -60,9 +74,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   empty cell. This has been fixed by treating None and NA values in
   `converters.match_name_and_value` (see above).
 
-### Security ###
-
 ### Documentation ###
+
 - Added documentation for ROCrateConverter, ELNFileConverter, and ROCrateEntityConverter
 
 ## [0.10.1] - 2024-11-13 ##
diff --git a/CITATION.cff b/CITATION.cff
index ed859432b26cde913f7283fb8e969a97b7b74f41..8f4e22a4f8b56c8640e7d0a9a5ccae93010b4847 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -17,6 +17,6 @@ authors:
     given-names: Alexander
     orcid: https://orcid.org/0000-0003-4124-9649
 title: CaosDB - Crawler
-version: 0.10.1
+version: 0.11.0
 doi: 10.3390/data9020024
-date-released: 2024-11-13
\ No newline at end of file
+date-released: 2025-03-05
\ No newline at end of file
diff --git a/setup.cfg b/setup.cfg
index ae138a9ace0dcc6d88bb1f8fb46f77ac094f73a0..f6f95d6de8bdea2d7620eb05d7654cb9600fabb5 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = caoscrawler
-version = 0.10.2
+version = 0.11.1
 author = Alexander Schlemmer
 author_email = alexander.schlemmer@ds.mpg.de
 description = A new crawler for LinkAhead
diff --git a/src/caoscrawler/identifiable_adapters.py b/src/caoscrawler/identifiable_adapters.py
index 6169a99e7bf47daffb53332b7e0b6513730f2561..444b73f5d9a42cf8ec23eec7cb718b1fc183dd30 100644
--- a/src/caoscrawler/identifiable_adapters.py
+++ b/src/caoscrawler/identifiable_adapters.py
@@ -672,11 +672,15 @@ class CaosDBIdentifiableAdapter(IdentifiableAdapter):
         registered = []
         for parent in rt.parents:
             prt = _retrieve_RecordType(id=parent.id, name=parent.name)
-            registered.append(self._get_registered_for_rt(prt))
+            reg = self._get_registered_for_rt(prt)
+            if reg is not None:
+                registered.append(reg)
         # TODO we might in future want to check whether the registered identifiables are the same
         if len(registered) > 1:
-            raise RuntimeError("Multiple registered identifiables found for the RecordType "
-                               f" {rt.name} with the following parents: {rt.parents}")
+            ri_names = [i.name for i in registered]
+            raise RuntimeError(f"Multiple registered identifiables found for the RecordType "
+                               f" {rt.name} with the following parents: {rt.parents}\n"
+                               f"Registered identifiables: {', '.join(ri_names)}")
         elif len(registered) == 1:
             return registered[0]
         else:
diff --git a/src/doc/conf.py b/src/doc/conf.py
index 0b591fba59522b7e9386da5b68e3c70ef0fa7346..2a783dec27a700f9d350a2b46cdd647ff0fccf2f 100644
--- a/src/doc/conf.py
+++ b/src/doc/conf.py
@@ -33,10 +33,10 @@ copyright = '2024, IndiScale'
 author = 'Alexander Schlemmer'
 
 # The short X.Y version
-version = '0.10.2'
+version = '0.11.1'
 # The full version, including alpha/beta/rc tags
 # release = '0.5.2-rc2'
-release = '0.10.2-dev'
+release = '0.11.1-dev'
 
 
 # -- General configuration ---------------------------------------------------
diff --git a/unittests/test_identifiable_adapters.py b/unittests/test_identifiable_adapters.py
index 5108e83c83db16f1b44d836bf22d21d8e871ee8f..1c7733acfe952a2f47eff2853c2b90684c098dbf 100644
--- a/unittests/test_identifiable_adapters.py
+++ b/unittests/test_identifiable_adapters.py
@@ -54,7 +54,9 @@ def mock_retrieve_RecordType(id, name):
         "Lab": db.RecordType(name="Lab"),
         "Analysis": db.RecordType(name="Analysis"),
         "MetaAnalysis": db.RecordType(name="MetaAnalysis").add_parent("Analysis"),
-        "Measurement": db.RecordType(name="Measurement").add_parent("Experiment")
+        # Test that two parents are possible; only one of them
+        # (Experiment) has an identifiable.
+        "Measurement": db.RecordType(name="Measurement").add_parent("Experiment").add_parent("A")
     }[name]
 
 
@@ -330,8 +332,10 @@ def test_get_registered_identifiable():
     with pytest.raises(RuntimeError):
         registered = ident.get_registered_identifiable(rec)
 
-    # Test the case that the record has a parent for which no identifiable is registered
-    # and there is a registered identifiable for a grand parent
+    # Test the case that the record has a parent for which no
+    # identifiable is registered and there is a registered
+    # identifiable for a grand parent. Note that this also tests the
+    # case of two grandparents, only one of which has an identifiable.
     ident = CaosDBIdentifiableAdapter()
     ident.load_from_yaml_definition(UNITTESTDIR / "example_identifiables.yml")
     rec = db.Record().add_parent(name="Measurement")