Danish ironclad Helgoland was created on 1879-08-20.
Danish ironclad Dannebrog was created on 1853-05-17.
Danish ironclad Tordenskjold ended on 1908-05-14.
Spanish ironclad Vitoria was created in 1868.
French ironclad Atalante was created in 1869.
Spanish ironclad Numancia was created in 1865.
Danish ironclad Helgoland ended on 1907-06-29.
Danish ironclad Danmark was created in 1869.
Danish ironclad Tordenskjold was created on 1882-09-29.
Danish ironclad Gorm was created on 1871-06-23.
Danish ironclad Dannebrog was created on 1853-05-17.
Danish ironclad Rolf Krake was created on 1863-07-01.
Helgoland Berlin was created in 1897.
Danish ironclad Dannebrog ended on 1875-02-02.
Danish ironclad Gorm ended on 1912-06-12.
Danish ironclad Danmark ended on 1900-11-22.
Danish ironclad Tordenskjold ended on 1908-05-14.
SMS Helgoland was created on 1911-08-23.