flag of Liechtenstein
... that a crown was added to the flag of Liechtenstein after it was discovered at the 1936 Summer Olympics that its prior flag was identical to the flag of Haiti?
... that a crown was added to the <b id="mwCaY"><a href="./Flag_of_Liechtenstein" id="mwCac" rel="mw:WikiLink" title="Flag of Liechtenstein">flag of Liechtenstein</a></b> after it was discovered at the <a href="./1936_Summer_Olympics" id="mwCag" rel="mw:WikiLink" title="1936 Summer Olympics">1936 Summer Olympics</a> that its prior flag was identical to the <a href="./Flag_of_Haiti" id="mwCak" rel="mw:WikiLink" title="Flag of Haiti">flag of Haiti</a>?