Liu Yan
... that the Tang Dynasty chancellor Liu Yan had, as a child, impressed Emperor Xuanzong of Tang by writing a song dedicated to his sacrifices at Mount Tai?
... that the <a class="mw-redirect" href="./Tang_Dynasty" id="mwFCU" rel="mw:WikiLink" title="Tang Dynasty">Tang Dynasty</a> <a class="mw-redirect" href="./Chancellor_of_Tang_Dynasty" id="mwFCY" rel="mw:WikiLink" title="Chancellor of Tang Dynasty">chancellor</a> <b id="mwFCc"><a class="mw-redirect" href="./Liu_Yan_(Tang_Dynasty)" id="mwFCg" rel="mw:WikiLink" title="Liu Yan (Tang Dynasty)">Liu Yan</a></b> had, as a child, impressed <a href="./Emperor_Xuanzong_of_Tang" id="mwFCk" rel="mw:WikiLink" title="Emperor Xuanzong of Tang">Emperor Xuanzong of Tang</a> by writing a song dedicated to his sacrifices at <a href="./Mount_Tai" id="mwFCo" rel="mw:WikiLink" title="Mount Tai">Mount Tai</a>?