Poisson: Chouki Pompadour no Shougai
ポワソン ~寵姫ポンパドゥールの生涯
Set in 18th century France, this is based on the life of Jeanne Antoinette Poisson (aka Madame de Pompadour) as she earns the favor of King Louis XV and becomes his favorite mistress while navigating the politics and rivalries of those who inhabit the Palace of Versailles.
(Source: Clairparfait)