Versailles of the Dead

Versailles of the Dead (ベルサイユオブザデッド) is a manga by Kumiko Suekane. It began its serialization in January 2016 in the Hibana manga magazine, before switching to the MangaOne app after Hibana was discontinued. It has been licensed for release in English by Seven Seas.

Plot
While en route from Austria to marry Louis XVI and become the Queen of France, Marie Antoinette’s carriage is intercepted by bloodthirsty zombies. The sole survivor of the attack is Marie’s twin brother, Albert. He heads for Versailles in his sister’s gown–and instead of continuing life as himself, decides to take his sister’s place. Now at the heart of the French royal court, Albert must face the undead horrors as the man who would be queen. (Official Synopsis).