diff -r 821c4950b619 -r dca186d3911f src/main/java/de/uapcore/lightpit/Constants.java
--- a/src/main/java/de/uapcore/lightpit/Constants.java	Tue May 19 19:34:57 2020 +0200
+++ b/src/main/java/de/uapcore/lightpit/Constants.java	Fri May 22 16:21:31 2020 +0200
@@ -68,6 +68,11 @@
     public static final String REQ_ATTR_MENU = fqn(AbstractLightPITServlet.class, "mainMenu");
 
     /**
+     * Key for the request attribute containing the breadcrumb menu.
+     */
+    public static final String REQ_ATTR_BREADCRUMBS = fqn(AbstractLightPITServlet.class, "breadcrumbs");
+
+    /**
      * Key for the request attribute containing the base href.
      */
     public static final String REQ_ATTR_BASE_HREF = fqn(AbstractLightPITServlet.class, "base_href");