diff --git a/.readthedocs.yaml b/.readthedocs.yaml
new file mode 100644
index 0000000..71b1189
--- /dev/null
+++ b/.readthedocs.yaml
@@ -0,0 +1,17 @@
+# Read the Docs configuration file for Sphinx projects
+# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
+version: 2
+
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.11"
+
+# Build documentation in the "docs/" directory with Sphinx
+sphinx:
+  configuration: docs/conf.py
+
+# Optionally declare the Python requirements required to build your docs
+python:
+  install:
+    - requirements: docs/requirements.txt
diff --git a/docs/requirements.txt b/docs/requirements.txt
index 44a988d..3935b1a 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1 +1,2 @@
 sphinx-autoapi
+sphinx_rtd_theme
diff --git a/sbol3/constants.py b/sbol3/constants.py
index 39e5822..e73ec51 100644
--- a/sbol3/constants.py
+++ b/sbol3/constants.py
@@ -163,6 +163,7 @@
 PROV_PLANS = PROV_NS + 'hadPlan'
 PROV_QUALIFIED_ASSOCIATION = PROV_NS + 'qualifiedAssociation'
 PROV_QUALIFIED_USAGE = PROV_NS + 'qualifiedUsage'
+PROV_INFORMED_BY = PROV_NS + 'wasInformedBy'
 PROV_ROLES = PROV_NS + 'hadRole'
 PROV_STARTED_AT_TIME = PROV_NS + 'startedAtTime'
 PROV_ENDED_AT_TIME = PROV_NS + 'endedAtTime'
diff --git a/sbol3/provenance.py b/sbol3/provenance.py
index 95c1e16..daa3918 100644
--- a/sbol3/provenance.py
+++ b/sbol3/provenance.py
@@ -214,6 +214,7 @@ def __init__(self, identity: str,
                  end_time: Union[str, datetime.datetime] = None,
                  usage: List[Identified] = None,
                  association: List[Identified] = None,
+                 informed_by: List[Identified] = None,
                  namespace: str = None,
                  attachments: List[str] = None,
                  name: str = None, description: str = None,
@@ -239,6 +240,10 @@ def __init__(self, identity: str,
                                        0, math.inf,
                                        initial_value=association,
                                        type_constraint=Association)
+        self.informed_by = OwnedObject(self, PROV_INFORMED_BY,
+                                       0, math.inf,
+                                       initial_value=informed_by,
+                                       type_constraint=Activity)
 
     def accept(self, visitor: Any) -> Any:
         """Invokes `visit_activity` on `visitor` with `self` as the only
diff --git a/test/test_provenance.py b/test/test_provenance.py
index 4195db7..3bba0b3 100644
--- a/test/test_provenance.py
+++ b/test/test_provenance.py
@@ -24,6 +24,7 @@ def test_create(self):
         self.assertEqual(None, activity.end_time)
         self.assertEqual([], activity.usage)
         self.assertEqual([], activity.association)
+        self.assertEqual([], activity.informed_by)
 
     def test_list_wrapping(self):
         # Ensure that at least certain properties handle automatic list