The battleships HMS Queen Elizabeth and SMS Baden represented the culmination of British and German (respectively) battleship development in WWI. Each carried 8 15" guns, and both were present at Jutland.
The Queen Elizabeth went on to be modernized and served in WWII. She was sunk by Italian frogmen at Alexandria in 1941, but was later raised and repaired and fought in the Far East till 1945. She was scrapped in 1948 after 33 years of distinguished service to the Royal Navy.
The Baden was scuttled at Scapa Flow after the German surrender, but was later raised by the British and used extensively for tests. She went to the bottom as a gunnery target in August 1921. Her design is widely credited as being the basis for the next generation's "Bismarck" class.