The book is dedicated to the second series of French dreadnoughts - three battleships of the Brittany type. The history of the creation of these ships, design features, repairs and modernization and the history of service are described, right up to the tragic end of Brittany and Provence. Line ships of the Brittany type were only a stage in the development of the French battleships of the Dreadnought era. Behind them in 1913-1914. battleships of the Normandy type were laid, on which, for the first time in the world, four-gun artillery mounts of the main caliber were to be installed, followed by even more powerful battleships of the Lyon type with the world's largest artillery of the main caliber of four four-gun mounts and with a perfect reservation system. Battlecruisers were designed. The First World War crossed out the implementation of these plans. The fate of the first French "super dreadnoughts" - battleships of the Brittany types - is described in this book.