Aachener Dom, Palentine Chapel
<a href="//commons.wikimedia.org/wiki/User:Dirk_J._van_der_Veen" title="User:Dirk J. van der Veen">Dirk J. van der Veen</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>