In the case of Mademoiselle de Tours, the Queen managed to conquer her dislike, and also sent for the Duc du Maine. Despite her affection for M. le Dauphin, she herself admitted that if Monseigneur had the airs of a gentleman, M. le Duc du Maine looked the very type of a king’s son.

The Duc du Maine, Madame de Maintenon’s special pupil, was so well trained to all the exigencies of his position and his rank, that such premature perfection caused him to pass for a prodigy. Than his, no smile could be more winning and sweet; no one could carry himself with greater dignity and ease. He limps slightly, which is a great pity, especially as he has such good looks, and so graceful a figure; his lameness, indeed, was entirely the result of an accident,--a sad accident, due to teething. To please the King, his governess took him once to Auvez, and twice to the Pyrenees, but neither the waters nor the Auvez quack doctors could effect a cure. At any rate, I was fortunate enough to bring up this handsome prince, who, if he treat me with ceremony, yet loves me none the less.

The Memoirs of Madame de Montespan, Complete — Part 114

Brought up by the Duc de Montausier, a sort of monkish soldier, and by Bossuet, a sort of military monk, Monsieur le Dauphin had no good examples from which to profit. Crammed as he is with Latin, Greek, German, Spanish, and Church history, he knows all that they teach in colleges, being totally ignorant of all that can only be learnt at the Court of a king. He has no distinction of manner, no polish or refinement of address; he laughs in loud guffaws, and even raises his voice in the presence of his father. Having been born at Court, his way of bowing is not altogether awkward; but what a difference between his salute and that of the King! “Monseigneur looks just like a German prince.” That speech exactly hits him off,--a portrait sketched by no other brush than that of his royal father.

The Memoirs of Madame de Montespan, Complete — Part 114

Monseigneur, who does not like me, pays me court the same as any one else. Being very jealous of the pretty Comte de Vermandois and his brother, the Duc du Maine, he tries to imitate their elegant manner, but is too stiff to succeed. The Duc du Maine shows him the respect inspired by his governess, but the Comte de Vermandois, long separated from his mother, has been less coached in this respect, and being thoroughly candid and sincere, shows little restraint. Often, instead of styling him “Monseigneur,” he calls him merely “Monsieur le Dauphin,” while the latter, as if such a title were common or of no account, looks at his brother and makes no reply.

The Memoirs of Madame de Montespan, Complete — Part 114