Agatha Löhrer
- Born: 28 Dec 1690, Rotenberg, Schwarzwaldkreis, Wuerttemberg
- Marriage: Lucas Daniel Osiander on 24 Jul 1708 in Rotenberg, Schwarzwaldkreis, Wuerttemberg
- Died: 27 Feb 1730 at age 39
 Another name for Agatha was Agatha Loehrer.
Agatha married Lucas Daniel Osiander, son of Johann Lucas Osiander and Anna Maria Barbara Seemann, on 24 Jul 1708 in Rotenberg, Schwarzwaldkreis, Wuerttemberg. (Lucas Daniel Osiander was born on 23 Oct 1679 in Rotenberg, Schwarzwaldkreis, Wuerttemberg and died on 17 Feb 1725.)
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