Diego García de Moguer
... that Diego García de Moguer was a 16th-century pioneer in exploring the Paraná River, as well as the Sierra de la Plata of the Río de la Plata?
... that <b id="mwBIw"><a href="./Diego_García_de_Moguer" id="mwBI0" rel="mw:WikiLink" title="Diego García de Moguer">Diego García de Moguer</a></b> was a 16th-century pioneer in exploring the <a href="./Paraná_River" id="mwBI4" rel="mw:WikiLink" title="Paraná River">Paraná River</a>, as well as the <a href="./Sierra_de_la_Plata" id="mwBI8" rel="mw:WikiLink" title="Sierra de la Plata">Sierra de la Plata</a> of the <a href="./Río_de_la_Plata" id="mwBJA" rel="mw:WikiLink" title="Río de la Plata">Río de la Plata</a>?