C H I L D E S The First Baby Diary

Jean (Jehan) Héroard was personal physician to Louis XIII of France. Born in 1551, Héroard was fifty years old at the time of Louis' birth and kept a daily journal of Louis's development from birth for 26 years, terminating only due to Héroard's own death in 1628.

This journal, along with commentaries, is reproduced in the following publication:
Foisil, Madeleine (Ed.) 1989. Journal de Jean Héroards. Publication du centre de recherche sur la civilisation de l'Europe moderne, 2 volumes, Paris, Fayard (Vol 1, 1601-1608; vol 2, 1609-1628)

Additional references include:

Ernst, G. (1985) Gesprochenes Franzoesisch zu Beginn des 17
Jahrhunderts, Direkte Rede in Jean Héroards "Histoire particulière de Louis XIII" (1601-1610), Tubingen, Max Niemeyer Verlag, X-623pp.

Gougenheim, H (1931) L'observation du langage d'un enfant royal au XVIIe siècle. Revue de philologie française et romane, 43, 1-15.

Ingram, D. & Le Normand, M-T. (1996). A diary study on the acquisition of Middle French: A preliminary report of the early language acquisition of Louis XIII. Proceedings of the 20th annual Boston University conference on language development, 352-63.