diff --git a/src/caosdb/common/models.py b/src/caosdb/common/models.py
index efd4a3e7af55297588bf03f869f18846d991f3f0..3b225b337b987afef38192d8d33b2d5d88e57769 100644
--- a/src/caosdb/common/models.py
+++ b/src/caosdb/common/models.py
@@ -429,16 +429,37 @@ class Entity(object):
         return self
 
     def add_parent(self, parent=None, **kwargs):  # @ReservedAssignment
-        """Add a parent to this entity.
+        """Add a parent to this entity
+
+        Parameters
+        ----------
+        parent : Entity or int or str or None
+            The parent entity, either specified by the Entity object
+            itself, or its id or its name. Default is None.
+        **kwargs : dict, optional
+            Additional keyword arguments for specifying the parent by
+            name or id, and for specifying the mode of inheritance.
+
+            id : int
+                Integer id of the parent entity. Ignored if `parent`
+                is not None.
+            name : str
+                Name of the parent entity. Ignored if `parent is not
+                none`.
+            inheritance : str
+                One of `"obligatory"`, `"recommended"`, `"suggested"`,
+                or `"fix"`. Specifies the importance of the properties
+                of the parent that will be inherited by this
+                entity. If no `inheritance` is given, no properties
+                will be inherited by the child.
+
+        Raises
+        ------
+        UserWarning
+            If neither a 'parent' parameter, nor the 'id', nor 'name'
+            parameter is passed to this method.
 
-        The first parameter is meant to identify the parent entity. So the method expects an instance of
-        Entity, an integer or a string here. Even though, by means of the **kwargs parameter you may pass
-        more parameters to this method. Accepted keywords are: id, name, inheritance. Any other keyword is
-        ignored right now but this may change in the future.
 
-        @param parent: An entity, an id or a name.
-        @param **kwargs: Accepted keywords: id, name, inheritance.
-        @raise UserWarning: If neither a 'parent' parameter, nor the 'id', nor 'name' parameter is passed to this method.
         """
         name = (kwargs['name'] if 'name' in kwargs else None)
         pid = (kwargs['id'] if 'id' in kwargs else None)
@@ -1435,6 +1456,23 @@ class Property(Entity):
             property=property, value=value, **copy_kwargs)
 
     def add_parent(self, parent=None, **kwargs):
+        """Add a parent Entity to this Property.
+
+        Parameters
+        ----------
+        parent : Entity or int or str or None, optional
+            The parent entity
+        **kwargs : dict, optional
+            Additional keyword arguments specifying the parent Entity
+            by id or name, and specifying the inheritance level. See
+            :py:meth:`Entity.add_parent` for more information. Note
+            that by default, `inheritance` is set to `FIX`.
+
+        See Also
+        --------
+        Entity.add_parent
+
+        """
         copy_kwargs = kwargs.copy()
 
         if 'inheritance' not in copy_kwargs:
@@ -1513,6 +1551,24 @@ class RecordType(Entity):
                                     **copy_kwargs)
 
     def add_parent(self, parent=None, **kwargs):
+        """Add a parent to this RecordType
+
+        Parameters
+        ----------
+        parent : Entity or int or str or None, optional
+            The parent entity, either specified by the Entity object
+            itself, or its id or its name. Default is None.
+        **kwargs : dict, optional
+            Additional keyword arguments specifying the parent Entity by id or
+            name, and specifying the inheritance level. See
+            :py:meth:`Entity.add_parent` for more information. Note
+            that by default, `inheritance` is set to `OBLIGATORY`.
+
+        See Also
+        --------
+        Entity.add_parent
+
+        """
         copy_kwargs = kwargs.copy()
 
         if 'inheritance' not in copy_kwargs:
diff --git a/src/caosdb/exceptions.py b/src/caosdb/exceptions.py
index f02a4630356726f99d8439fd821b6dd327ab22c7..fdd2e11f1dfb8857f86942df2534d732bad9a793 100644
--- a/src/caosdb/exceptions.py
+++ b/src/caosdb/exceptions.py
@@ -189,8 +189,8 @@ class TransactionError(CaosDBException):
         error_t. If direct_children_only is True, only direct children
         are checked.
 
-        Parameters:
-        -----------
+        Parameters
+        ----------
         error_t : EntityError
             error type to be checked
         direct_children_only: bool, optional
@@ -199,8 +199,8 @@ class TransactionError(CaosDBException):
             children, i.e., all errors in self.all_errors are
             used. Default is false.
 
-        Returns:
-        --------
+        Returns
+        -------
         has_error : bool
             True if at least one of the children is of type error_t,
             False otherwise.
diff --git a/src/doc/tutorials/Data-Insertion.rst b/src/doc/tutorials/Data-Insertion.rst
index 22a5548b1827b1b9bda765b155b539ceba8a822a..e0ea62e3e7d6bbb8b9e78cb916fee88bd7956209 100644
--- a/src/doc/tutorials/Data-Insertion.rst
+++ b/src/doc/tutorials/Data-Insertion.rst
@@ -40,7 +40,10 @@ Inheritance of Properties
 -------------------------
 
 Suppose you want to insert a new RecordType “2D_BarkleySimulation”
-that denotes spatially extended Barkley simulations. 
+that denotes spatially extended Barkley simulations. This is a subtype
+of the “BarkleySimulation” RecordType above and should have all its
+parameters, i.e., properties. It may be assigned more, e.g., spatial
+resolution, but we'll omit this for the sake of brevity for now.
 
 .. code:: python
 
@@ -53,12 +56,15 @@ that denotes spatially extended Barkley simulations.
    print(rt.get_property(name="epsilon").importance) ### rt has a "epsilon" property with the same importance as "BarkleySimulation"
 
 The parameter ``inheritance=(obligatory|recommended|fix|all|none)`` of
-``add_parent`` tells the server to assign obligatory:: properties of the
-parent to the child automatically, recommended:: properties of the
-parent to the child automatically, fix:: properties of the parent to the
-child automatically, all:: properties of the parent to the child
-automatically, none:: of the properties of the parent to child
-automatically,
+``add_parent`` tells the server to assign all properties of the parent
+RecordType with the chosen importance to the child RecordType
+automatically upon insertion.
+
+.. note::
+
+   The inherited properties will only be present after the insertion
+   since they have to be set by the CaosDB server, not by the Python
+   Client.
 
    
 Insert Actual Data