The 1st (Silesian) Life Cuirassiers were a heavy cavalry regiment of the Royal Prussian Army. The regiment was originally formed as Dragoon Guards in 1674 and reorganized as a cuirassiers unit in 1718. The regiment fought in the Silesian Wars and the War of the Sixth Coalition 1813-15, the Austro-Prussian War, the Franco-Prussian War and World War I. The regiment was disbanded in 1919.
Between 1815 and 1863, its commander was Prince Frederick of Prussia (1794–1863).
References
1st (Silesian) Life Cuirassiers "Great Elector" Wikipedia(Text) CC BY-SA