Rudolf Hess gave the speech at her launch in the presence of Adolf Hitler, and Horst Wessel's mother christened the new ship with a bottle of champagne.[5] The name was given in tribute to SA leader Horst Wessel, who had been accorded martyr status by the Nazi Party. He also wrote the song which came to be known as "Horst-Wessel-Lied", which was later used as the Nazi national anthem. Shortly after work began on Horst Wessel, the Blohm & Voss shipyard laid the keel of the German battleship Bismarck, which was labeled Schiff 509.[6]