Jean-Pierre Aurélien de Sèze was born on 11 September 1799 in the Chateau d'Eyrans, Saint-Médard-d'Eyrans, Gironde.

[2] At the age of 25 de Sèze visited Cauterets so he could spend time with his fiancée, Mlle Laure Le Hoult, and her family.

He wrote to Aurore, "No one speaks like you, no one has your accent, your voice, your laugh, your way of seeing a thing and expressing the idea.

[5] After the July Revolution of 1830 de Sèze resigned rather than take an oath of loyalty to the Orléanist branch and returned to private practice at the Bordeaux bar, where he pleaded in several important criminal trials.

He voted for the prosecution of Louis Blanc and Marc Caussidière, for restoration of physical constraint, against abolition of the death penalty and against the constitutional amendment of Jules Grévy.

He voted for the Rateau proposal, for prohibition of clubs, for credits for the Roman expedition, against amnesty and for abolition of the tax on beverages.