AMALIE KROMREI/Sonnenborn

I am looking for any information on my g-grandmother
AMALIE KROMREI. She married August Tomaschewski and gave birth to 7 known children. Sher lived with her husband
in Sonnenborn, Kreis Mohrungen, Prussia. She was listed as being Lutheran and also Protestant. Her time frame would be 1840 or about. She was still alive in Germany in 1913, her husband had died or she was divorced and her name was Amamlie Erasmuv. Any info would be appreciated.