diff --git a/src/Umbraco.Core/Models/Relation.cs b/src/Umbraco.Core/Models/Relation.cs
new file mode 100644
index 0000000000..f886e3c890
--- /dev/null
+++ b/src/Umbraco.Core/Models/Relation.cs
@@ -0,0 +1,88 @@
+using System;
+using System.Reflection;
+using System.Runtime.Serialization;
+using Umbraco.Core.Models.EntityBase;
+
+namespace Umbraco.Core.Models
+{
+    /// <summary>
+    /// Represents a Relation between two items
+    /// </summary>
+    [Serializable]
+    [DataContract(IsReference = true)]
+    public class Relation : Entity
+    {
+        //NOTE: The datetime column from umbracoRelation is set on CreatedDate on the Entity
+        private int _parentId;
+        private int _childId;
+        private RelationType _relationType;
+        private string _comment;
+
+        public Relation(int parentId, int childId)
+        {
+            _parentId = parentId;
+            _childId = childId;
+        }
+
+        private static readonly PropertyInfo ParentIdSelector = ExpressionHelper.GetPropertyInfo<Relation, int>(x => x.ParentId);
+        private static readonly PropertyInfo ChildIdSelector = ExpressionHelper.GetPropertyInfo<Relation, int>(x => x.ChildId);
+        private static readonly PropertyInfo RelationTypeSelector = ExpressionHelper.GetPropertyInfo<Relation, RelationType>(x => x.RelationType);
+        private static readonly PropertyInfo CommentSelector = ExpressionHelper.GetPropertyInfo<Relation, string>(x => x.Comment);
+
+        /// <summary>
+        /// Gets or sets the Parent Id of the Relation (Source)
+        /// </summary>
+        [DataMember]
+        public int ParentId
+        {
+            get { return _parentId; }
+            set
+            {
+                _parentId = value;
+                OnPropertyChanged(ParentIdSelector);
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the Child Id of the Relation (Destination)
+        /// </summary>
+        [DataMember]
+        public int ChildId
+        {
+            get { return _childId; }
+            set
+            {
+                _childId = value;
+                OnPropertyChanged(ChildIdSelector);
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the <see cref="RelationType"/> for the Relation
+        /// </summary>
+        [DataMember]
+        public RelationType RelationType
+        {
+            get { return _relationType; }
+            set
+            {
+                _relationType = value;
+                OnPropertyChanged(RelationTypeSelector);
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets a comment for the Relation
+        /// </summary>
+        [DataMember]
+        public string Comment
+        {
+            get { return _comment; }
+            set
+            {
+                _comment = value;
+                OnPropertyChanged(CommentSelector);
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/Umbraco.Core/Models/RelationType.cs b/src/Umbraco.Core/Models/RelationType.cs
new file mode 100644
index 0000000000..38f485e481
--- /dev/null
+++ b/src/Umbraco.Core/Models/RelationType.cs
@@ -0,0 +1,106 @@
+using System;
+using System.Reflection;
+using System.Runtime.Serialization;
+using Umbraco.Core.Models.EntityBase;
+
+namespace Umbraco.Core.Models
+{
+    /// <summary>
+    /// Represents a RelationType
+    /// </summary>
+    [Serializable]
+    [DataContract(IsReference = true)]
+    public class RelationType : Entity
+    {
+        private string _name;
+        private string _alias;
+        private bool _isBidrectional;
+        private Guid _parentObjectType;
+        private Guid _childObjectType;
+
+        public RelationType(Guid childObjectType, Guid parentObjectType, string @alias)
+        {
+            _childObjectType = childObjectType;
+            _parentObjectType = parentObjectType;
+            _alias = alias;
+        }
+
+        private static readonly PropertyInfo NameSelector = ExpressionHelper.GetPropertyInfo<RelationType, string>(x => x.Name);
+        private static readonly PropertyInfo AliasSelector = ExpressionHelper.GetPropertyInfo<RelationType, string>(x => x.Alias);
+        private static readonly PropertyInfo IsBidirectionalSelector = ExpressionHelper.GetPropertyInfo<RelationType, bool>(x => x.IsBidirectional);
+        private static readonly PropertyInfo ParentObjectTypeSelector = ExpressionHelper.GetPropertyInfo<RelationType, Guid>(x => x.ParentObjectType);
+        private static readonly PropertyInfo ChildObjectTypeSelector = ExpressionHelper.GetPropertyInfo<RelationType, Guid>(x => x.ChildObjectType);
+
+        /// <summary>
+        /// Gets or sets the Name of the RelationType
+        /// </summary>
+        [DataMember]
+        public string Name
+        {
+            get { return _name; }
+            set
+            {
+                _name = value;
+                OnPropertyChanged(NameSelector);
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the Alias of the RelationType
+        /// </summary>
+        [DataMember]
+        public string Alias
+        {
+            get { return _alias; }
+            set
+            {
+                _alias = value;
+                OnPropertyChanged(AliasSelector);
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets a boolean indicating whether the RelationType is Bidirectional (true) or Parent to Child (false)
+        /// </summary>
+        [DataMember]
+        public bool IsBidirectional
+        {
+            get { return _isBidrectional; }
+            set
+            {
+                _isBidrectional = value;
+                OnPropertyChanged(IsBidirectionalSelector);
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the Parents object type id
+        /// </summary>
+        /// <remarks>Corresponds to the NodeObjectType in the umbracoNode table</remarks>
+        [DataMember]
+        public Guid ParentObjectType
+        {
+            get { return _parentObjectType; }
+            set
+            {
+                _parentObjectType = value;
+                OnPropertyChanged(ParentObjectTypeSelector);
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the Childs object type id
+        /// </summary>
+        /// <remarks>Corresponds to the NodeObjectType in the umbracoNode table</remarks>
+        [DataMember]
+        public Guid ChildObjectType
+        {
+            get { return _childObjectType; }
+            set
+            {
+                _childObjectType = value;
+                OnPropertyChanged(ChildObjectTypeSelector);
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/Umbraco.Core/Umbraco.Core.csproj b/src/Umbraco.Core/Umbraco.Core.csproj
index fbf011e9c8..4aa5b4e2c9 100644
--- a/src/Umbraco.Core/Umbraco.Core.csproj
+++ b/src/Umbraco.Core/Umbraco.Core.csproj
@@ -65,6 +65,8 @@
     <Compile Include="Models\DictionaryItem.cs" />
     <Compile Include="Models\DictionaryTranslation.cs" />
     <Compile Include="Models\Language.cs" />
+    <Compile Include="Models\Relation.cs" />
+    <Compile Include="Models\RelationType.cs" />
     <Compile Include="PublishedContentExtensions.cs" />
     <Compile Include="Dictionary\ICultureDictionary.cs" />
     <Compile Include="Dynamics\ClassFactory.cs" />