King of Prussia during the Napoleonic wars (1770–1840) who ruled from 1797 until his death. LS in German, one page, 8.5 x 5, May 19, 1836. In part (translated): “If your second son meets the prescribed conditions and the 28th Infantry Regiment will accept it, so I approve, that he would enter six months before his 17th birthday with a view to promotion, and leave you to get on with this permission.” A central vertical fold with tiny edge separations, and trivial staining, otherwise fine condition. A scarce, boldly signed example.
