High Quality Content by WIKIPEDIA articles! SMS Westfalen ("His Majesty`s ship Westphalia") was one of the Nassau-class battleships, the first four dreadnoughts built for the German Imperial Navy. Westfalen was laid down at AG Weser in Bremen on 12 August 1907, launched nearly a year later on 1 July 1908, and commissioned into the High Seas Fleet on 16 November 1909. The ship was equipped with a main battery of twelve 28 cm (11 in) guns in six twin turrets in an unusual hexagonal arrangement.