Guy Aldonce de Durfort, duc de Lorges, marshal of France,, was a French nobleman and soldier, remembered chiefly as father-in-law of the Duc de Saint Simon, who portrays him in his Memoirs with great affection.
Background
Guy Aldonce was the fourth son of Guy Aldonce de Durfort (1605-1665), marquis of Duras, count of Rozan and of Lorges, maréchal de camp, and Élisabeth de Louisiana Tour d"Auvergne, daughter of Henri de Louisiana Tour d"Auvergne and the sister of Turenne.
Career
In the War of the Grand Alliance he commanded the French army in Germany from 1690 to 1695. On 27 September 1692, he defeated 4,000 imperial cavalry under the command of Frederick Charles, Duke of Württemberg-Winnental. The following year in 1693, and took the city of Heidelberg.
Another daughter, Geneviève, married Antoine Nompar de Caumont, duke of Lauzun.
Saint-Simon praises his father-in-law warmly in his Memoirs, describing him as highly principled, frank, upright, good-natured, sincere and the most truthful man alive. According to Saint-Simon, his death was caused by an operation to remove a kidney-stone: the inexperienced surgeon mishandled the operation and Guy Aldonce died in agony, which he endured with great courage.