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.

Between 1815 and 1863, its commander was Prince Frederick of Prussia (1794–1863).

Die preussischen Kavallerie-Regimenter 1913/1914 nach dem Gesetz vom 3.