Louis was probably informed of this strange promise by his young son Philip himself, who got himself released from it by Pope Urban IV.

At any rate, the king had a foreshadowing of Queen Marguerite's inclinations, and took precautions for rendering them harmless to the crown and the state.
As for his children, Louis occupied himself in thought and deed with their education and their future, moral and social, showing as much affection and assiduity as could have been displayed by any father of a family, even the most devoted to this single task.

"After supper they followed him into his chamber, where he made them sit down around him; he instructed them in their duties, and then sent them away to bed.

He drew their particular attention to the good and evil deeds of princes.
He, moreover, went to see then in their own apartment when he had any leisure, informed himself as to the progress they were making, and, like another Tobias, gave them excellent instructions.

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