Engelbrechten had joined Prussian service as Kornett in the hussar regiment von Zieten in 1783, but in 1788 he returned into Swedish service.
On 4 November 1815, he was taken over in Prussian services as General-Lieutenant (his patent also dating from that day).
He died unexpectedly on his way while he was on a mission to the Swedish court.
(Priesdorff, No. 1256, with a portrait as Prussian general)
See also (German bio):