Helmuth Brinkmann
... that the commander of the heavy cruiser Prinz Eugen, Captain Helmuth Brinkmann, was a classmate of the battleship Bismarck's commander Ernst Lindemann?
... that the commander of the <a href="./German_cruiser_Prinz_Eugen" id="mwDe0" rel="mw:WikiLink" title="German cruiser Prinz Eugen">heavy cruiser <i id="mwDe4">Prinz Eugen</i></a>, Captain <b id="mwDe8"><a href="./Helmuth_Brinkmann" id="mwDfA" rel="mw:WikiLink" title="Helmuth Brinkmann">Helmuth Brinkmann</a></b>, was a classmate of the <a href="./German_battleship_Bismarck" id="mwDfE" rel="mw:WikiLink" title="German battleship Bismarck">battleship <i id="mwDfI">Bismarck</i></a>'s commander <a href="./Ernst_Lindemann" id="mwDfM" rel="mw:WikiLink" title="Ernst Lindemann">Ernst Lindemann</a>?