Maria Dorethea Becht - Maria Dorothea Becht

The info above indicate that Maria was born 1671, and passed away 1 Sept 1703.
Can anyone assist where this info came from as I cannot find her baptism entry of death notice.
What I could find was that she and Johann Christoph Strauss bought a house in Strasbourg in 1707.
The house was sold the next year, therefore they must have passed away after 1708?
I would appreciated any assistance.
Regards
Mara