Third of the eight:
Chateau du Petit Coudray, Verneuil sur Igneraie.
Accounts vary, but Coudray is said to be a maison de maitre built on 15th c "captaincy" foundations.
Derelict for 30 or 50 years, depending on the account, Coudray was purchased by school teachers Pierre and Lydie Rauzy for
400K francs in 1981 (USD$61K). Taking out successive loans, the Rauzys have dedicated their lives to restoring Coudray -- roof, plumbing, electricity, much of the work done with their own hands. They inspired a local tile maker to refire his wood oven to reproduce terra cotta corbels, and combed second hand dealers for hand-forged nails. They give lectures, musical evenings and tours of their garden, recounting how it's where George Sand met her literary mentor. They recently
received a medal from the tourism board from the hands of the George Sand Museum director. It's thirty minutes from Lalande.
I can't find any mention of it in the vlogs. Even though it's not a chateau, the Rauzys could give PhD lectures on sensitive DIY restoration to anyone who asked, as well as how to squeeze every last tourist dollar out of the George Sand connection, including musical evenings (Chopin wrote 3/4 of his oeuvre at Sand's house near Lalande). But of course they're not grand enough for LaLa.