High Quality Content by WIKIPEDIA articles SMS Friedrich der Grosse (or Gro e was an armored frigate of the German Kaiserliche Marine. She was the second of three Preussen-class ironclads, in addition to her two sister-ships Preussen and Grosser Kurf rst. Named for Frederick the Great, she was laid down at the Imperial Dockyard in Kiel in 1871 and completed in 1877. Her main battery of four 26 cm (10 in) guns was mounted pair of twin gun turrets...