diff --git a/Exception/DataException.php b/Exception/DataException.php
new file mode 100644
index 0000000..2b11543
--- /dev/null
+++ b/Exception/DataException.php
@@ -0,0 +1,7 @@
+<?php
+
+namespace Subugoe\IIIFBundle\Exception;
+
+class DataException extends IIIFException
+{
+}
diff --git a/Exception/IIIFException.php b/Exception/IIIFException.php
new file mode 100644
index 0000000..e533db1
--- /dev/null
+++ b/Exception/IIIFException.php
@@ -0,0 +1,7 @@
+<?php
+
+namespace Subugoe\IIIFBundle\Exception;
+
+class IIIFException extends \Exception
+{
+}
diff --git a/Exception/MalformedDocumentException.php b/Exception/MalformedDocumentException.php
index ed97f37..7361b59 100644
--- a/Exception/MalformedDocumentException.php
+++ b/Exception/MalformedDocumentException.php
@@ -2,6 +2,6 @@
 
 namespace Subugoe\IIIFBundle\Exception;
 
-class MalformedDocumentException extends \Exception
+class MalformedDocumentException extends IIIFException
 {
 }
diff --git a/Service/PresentationService.php b/Service/PresentationService.php
index 67e5a1d..eb7ec05 100644
--- a/Service/PresentationService.php
+++ b/Service/PresentationService.php
@@ -4,6 +4,7 @@
 
 namespace Subugoe\IIIFBundle\Service;
 
+use Subugoe\IIIFBundle\Exception\DataException;
 use Subugoe\IIIFBundle\Exception\MalformedDocumentException;
 use Subugoe\IIIFBundle\Model\LogicalStructure;
 use Subugoe\IIIFBundle\Model\PhysicalStructure;
@@ -501,7 +502,11 @@ private function getPreviousHierarchyStructure(\Subugoe\IIIFBundle\Model\Documen
             }
         }
 
-        throw new \Exception('Parent structure not defined');
+        throw new DataException(vsprintf(
+            'Parent structure at position %d with level %d and parent level %d not defined', [
+                $position, $level, $parentLevel,
+            ]
+        ), 1494506264);
     }
 
     /**