SMS Helgoland
1. Laid down at the Schichau-Werke on 20 December 1913, launched on 30 October 2 years later, commissioned on 14 March 1917, beached in the Gutter Sound at Scape Flow on 21 June 1919, refloated next July was she finally sunk while used as a target on 16 August 1921. A Bayern-class dreadnought battleship.
2. Laid down on 11 November 1908 at the Howaldtswerke at Kiel, launched on 25 September a year later, commissioned on 23 August 1911, stricken in the German navy on 5 November 1919, handed over to the United Kingdom on 5 August 1920 and decided to break her up which started on 3 March at Morecambe the next year. A Helgoland-class dreadnought battleship.