HMS E13
... that the British submarine HMS E13 was attacked and destroyed by German warships during World War I after running aground off the neutral Danish island of Saltholm?
...  that the British submarine <b id="mwGn0"><a about="#mwt62" data-mw='{"parts":[{"template":{"target":{"wt":"HMS","href":"./Template:HMS"},"params":{"1":{"wt":"E13"},"2":{"wt":""},"3":{"wt":"6"}},"i":0}}]}' href="./HMS_E13" id="mwGn4" rel="mw:WikiLink" title="HMS E13" typeof="mw:Transclusion">HMS<span typeof="mw:Entity"> </span><i>E13</i></a></b> <i id="mwGn8">(pictured)</i>  was attacked and destroyed by <a class="mw-redirect" href="./Kaiserliche_Marine" id="mwGoA" rel="mw:WikiLink" title="Kaiserliche Marine">German warships</a>  during <a href="./World_War_I" id="mwGoE" rel="mw:WikiLink" title="World War I">World War I</a>  after running aground off the  neutral <a href="./Denmark" id="mwGoI" rel="mw:WikiLink" title="Denmark">Danish</a>  island of <a href="./Saltholm" id="mwGoM" rel="mw:WikiLink" title="Saltholm">Saltholm</a>?