--- /dev/null
+<!DOCTYPE html>
+<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org">
+ <head>
+ <title th:fragment="title">404: Page not found</title>
+ </head>
+ <body>
+ <div th:fragment="content">
+ <p>We do not know, where you are.</p>
+ <p>And we do not know, why you are here.</p>
+ <p>But we can tell you: WE ARE SORRY!</p>
+ <p>Really.</p>
+ </div>
+ </body>
+</html>