Georges Mareschal, First Surgeon to Louis XIV and then to Louis XV, exercised a great influence on some near relations of his, who, like him, became excellent surgeons. A nephew of his, Martin Guérin, probably Marie Roger's sister's son, Mareschal's wife, distinguished himself as a surgeon. His uncle made him Ordinary Surgeon of the "hôpital de la Charité" in Paris. His hand was "swift and skilful". He gave treatment to Colonel de Fénelon, a French archbishop's great-nephew, war wounded in 1713. And he operated on James Edward Stuart of England for "fistula", the "Old Pretender" or the "Chevalier de Saint-Georges", in Avignon, in 1716. Martin Guérin's eldest son, Georges Guérin, was also a highly esteemed surgeon. On and after 1733, he was successively a surgical departmental head of the Italian Army, a chief-surgeon of the "Hôpital de la Charité" in Paris, a surgical officer of the second Musketeer Company. He was ennobled by Louis XV and received the ribbon of the "Ordre de Saint-Michel". One of Georges Guérin's sisters married the surgeon Sauveur-François Morand, who achieved celebrity for the diversity of his operations and his works. He delivered a funeral oration in praise of Georges Mareschal, at the meeting of the "Académie royale de chirurgie" on June 18th 1737. His son, a medical doctor, Clément Morand, and his son-in-law, the surgeon Sabatier, were not second to him as far as talent is concerned. Mareschal's fourth near relative, an anatomist, got himself talked about in connection with an autopsy. He was the husband of one of Elisabeth du Brun's daughters, Mareschal's sister.