The Mamaison Business & Conference Hotel Ostrava is changing its name; it is returning to its traditional name Imperial Hotel Ostrava. “The decision to remove the hotel from the Mamaison Hotels & Residences brand was carried out primarily to preserve the original name of the hotel, which in Ostrava has meaning, more than a century of history and an excellent reputation,” said Michal Seifert, Director of the Imperial Hotel Ostrava.