Tracked on 1 list across 1 authority.
5-star hotel near Champs-Élysées in a former marquis's residence, 52 rooms, Mediterranean menu by Chef Stefano Stafie.
Description via Yonder-society.
Hôtel de Sers appears on 1 of the lists Mouga tracks, and written up on 1 more. Here's the full trail, dated and linked to each source.