Dual Cypher of Princess Madeleine of Sweden and Christopher O'Neill
<a href="//commons.wikimedia.org/wiki/User:Glasshouse" title="User:Glasshouse">Glasshouse</a>
CC BY-SA 3.0
<a rel="nofollow" class="external autonumber" href="http://www.kungahuset.se/brollopet/brudparet/monogram.4.4ea495e313c19c119aa493e.html">[1]</a>