mounting his cavalry on moose
... that Charles XI of Sweden tried mounting his cavalry on moose?
... that <a href="./Charles_XI_of_Sweden" id="mwPA" rel="mw:WikiLink" title="Charles XI of Sweden">Charles XI of Sweden</a> tried <b id="mwPQ"><a href="./Moose_cavalry" id="mwPg" rel="mw:WikiLink" title="Moose cavalry">mounting his cavalry on moose</a></b>?