German physician
... that an attempted Russian conquest of Hawaii in 1815–1817 was led by a German physician?
... that an attempted <a href="./Russia" id="mwEcw" rel="mw:WikiLink" title="Russia">Russian</a> conquest of <a href="./Hawaii" id="mwEc0" rel="mw:WikiLink" title="Hawaii">Hawaii</a> in 1815–1817 was led by a <b id="mwEc4"><a href="./Georg_Anton_Schäffer" id="mwEc8" rel="mw:WikiLink" title="Georg Anton Schäffer">German physician</a></b>?