<a href="https://en.wikipedia.org/wiki/Nicolas-Louis_Vauquelin" class="extiw" title="w:Nicolas-Louis Vauquelin">Nicolas-Louis Vauquelin</a> (1763-1829), French chemist.
<div class="fn value">
<b>Eugène Joseph Viollat</b> (d.1901), after the engraving by <b>Dequevauville</b></div>
1866<div style="display: none;">date QS:P571,+1866-00-00T00:00:00Z/9</div>
Édouard Charton, <i>Le Magasin pittoresque</i>, Paris : Aux Bureaux d'Abonnement et de Vente, 1866.