Prinz Adalbert was torpedoed twice by British submarines operating in the Baltic; the first, on 1 July 1915, caused serious damage that was ultimately repaired.
阿达尔贝特亲王号则在波罗的海被英国潜艇的鱼雷击中两次；第一次是在1915年7月1日，对舰只造成了严重的破坏但最终得以修复。