Simplify the following text for a Grade 4 native English-speaking person.
Original: Her real name was Maria Jansson , but she is known in history as Kisamor ( `` The Mother in Kisa '' ) after the place were she worked .
Simplified: Her real name was Maria Jansson , but she was always called Kisamor . Kisamor means `` The Mother in Kisa '' in English , and Kisa was the place were she worked .