Hello,
I have Honigmanns in my family tree that go way back. I am not familiar with the name Ehrenberg in my tree, but I have been to Austria and have visited a castle Ehrenberg near Tirol...
Anyhow, my Honigmanns are in Grossoerner, which is just a stone's throw from Eisleben. Martha does not come up in my tree, but it doesn't mean we're not connected somehow. Would you happen to have any Zacharias Honigmanns in your tree? That seems to be a name that was passed down for a few generations...