Brazilian ironclad Rio de Janeiro
... that the Brazilian ironclad Rio de Janeiro struck two mines on 2 September 1866, during the War of the Triple Alliance, and sank instantly with the loss of 53 of her crew?
... that the <b id="mwEUc"><a about="#mwt73" data-mw='{"parts":[{"template":{"target":{"wt":"ship","href":"./Template:Ship"},"params":{"1":{"wt":"Brazilian ironclad"},"2":{"wt":"Rio de Janeiro"}},"i":0}}]}' href="./Brazilian_ironclad_Rio_de_Janeiro" id="mwEUg" rel="mw:WikiLink" title="Brazilian ironclad Rio de Janeiro" typeof="mw:Transclusion">Brazilian ironclad<span typeof="mw:Entity"> </span><i>Rio de Janeiro</i></a></b> struck two <a href="./Naval_mine" id="mwEUk" rel="mw:WikiLink" title="Naval mine">mines</a> on <span about="#mwt74" class="nowrap" data-mw='{"parts":[{"template":{"target":{"wt":"Nowrap","href":"./Template:Nowrap"},"params":{"1":{"wt":"2 September 1866"}},"i":0}}]}' id="mwEUo" typeof="mw:Transclusion">2 September 1866</span>, during the <a class="mw-redirect" href="./War_of_the_Triple_Alliance" id="mwEUs" rel="mw:WikiLink" title="War of the Triple Alliance">War of the Triple Alliance</a>, and sank instantly with the loss of 53 of her crew?