German generalleutnant

[Histomilifan]

Hello,
I am looking for informations about a german generalleutnant of WWII.
He was named Albert Hackmann.
He would have been general in Heer service.
Have you any information about him ?
Thank you in advance.

[Histomilifan]

I think, it also can be a grenadier leutnant (G.L.) dagger.
What's your opinion on it ?

[luftkrieg]

Are you sure you have the name right?

[Histomilifan]

I think now it's a grenadier leutnant (G.L.) and not a generalleutnant (GL).