Pierre Curie
He was a doctoral student of Pierre Curie and later a lover of widowed Marie Curie. He is also known for his two US patents with Constantin Chilowsky in 1916 and 1917 involving ultrasonic submarine detection.&lt;ref name="doi10.1258/ult.2011.011027"&gt;&lt;/ref&gt; He is entombed at the Panthéon.